#include <bits/stdc++.h>
using namespace std;
const int INF = 0x3fffffff;
const int SINF = 0x7fffffff;
const long long LINF = 0x3fffffffffffffff;
const long long SLINF = 0x7fffffffffffffff;
const int MAXL = 9;
const int MAXN = 263;
const int MOD = 777777777;
const int ans[MAXL][MAXN] = {
    1,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         1,         2,         1,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         5,         32,        30,        80,        109,       0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         541,       6824,
    59808,     147224,    415870,    1757896,   1897056,   4898872,   7593125,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         166257661, 776830421, 290516100, 746623577, 293783147,
    33900006,  735127505, 565460332, 428982705, 472062098, 161873957, 117354594,
    515619293, 578944191, 312106242, 569389279, 391464593, 0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         464207287,
    261086313, 584837659, 683961846, 468868529, 211593382, 736955478, 229471758,
    157617135, 398169441, 360252438, 629394768, 264125799, 647490480, 342079395,
    391579767, 225200475, 486011304, 513156108, 628771752, 132906648, 142138221,
    20119449,  444199674, 195188679, 387329805, 44684703,  651912135, 737154512,
    612549793, 519860281, 186175544, 212568440, 0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         382725349, 240805271, 239509872, 581127897,
    6511239,   156126222, 509425833, 672407328, 366667722, 459185405, 509737025,
    554790222, 165216555, 703150560, 74806569,  398730015, 383350905, 506108358,
    51326142,  298053147, 104256117, 391428765, 374020479, 206607807, 87664059,
    275899176, 56407680,  551553401, 448939463, 582889860, 129676638, 226078251,
    135769095, 61292868,  578972226, 190181628, 390739055, 184587732, 446575689,
    732674124, 232198470, 676760679, 352474101, 611444862, 575661807, 628905585,
    320813094, 522840969, 469781928, 156006018, 554473341, 239654268, 643714911,
    433540170, 199307003, 496385218, 291740751, 67309914,  370826673, 202356819,
    279421821, 421203111, 63744786,  520987612, 550671827, 0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    642497124, 482164403, 768209115, 462063756, 154906374, 36099042,  341766705,
    678182556, 621882744, 478771358, 231881111, 175889805, 243630450, 168908523,
    671961765, 55761813,  652682670, 773939082, 517628076, 756201264, 124604900,
    750976272, 498253248, 676047609, 137170026, 705610017, 495032139, 561797418,
    703097347, 500815609, 95984586,  739707108, 265613565, 387099846, 777331779,
    594676173, 591219559, 407997044, 208947235, 93337440,  478908360, 685013007,
    487033953, 671903001, 39521181,  738490312, 33785059,  465470131, 310453920,
    54648783,  346831137, 427694175, 474743430, 705296781, 435828036, 429824745,
    663532359, 261388683, 244690731, 533997135, 596108961, 506813013, 371892402,
    590145264, 104733162, 143420103, 654339672, 700348950, 685038942, 578826927,
    286484229, 501639192, 434962491, 299270097, 27702486,  335375775, 111746817,
    565603164, 294926121, 676063665, 735862995, 710035809, 437011960, 668528077,
    138765186, 508213986, 615036450, 353784942, 624827616, 343900011, 241289776,
    52410890,  72018835,  352406796, 415705878, 4802637,   376367145, 65589678,
    333633477, 341834527, 303717460, 282387700, 42951006,  254706039, 423048528,
    526429710, 68131467,  669954708, 12787348,  500636381, 317959019, 479433192,
    657133515, 416259390, 610216692, 340129188, 44594256,  257373347, 138718678,
    530767740, 292922628, 37220268,  605295159, 480722613, 458170419, 30540300,
    487159055, 232966794, 149150650, 0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         0,         0,         0,
    0,         0,         0,         0,         507720408, 412133651, 386543325,
    139952108, 289303402, 102404925, 317067177, 396414708, 80515854,  663739304,
    317300809, 228877044, 493725043, 715317967, 490300965, 315527373, 743539734,
    488329191, 553627998, 533025234, 242583957, 706116537, 614109258, 645447222,
    523195911, 492109128, 722623041, 111085128, 766395126, 654378921, 691964847,
    496688157, 399056049, 654363234, 102052314, 191720088, 473910948, 259736526,
    332840025, 388047555, 665791056, 627111387, 139696515, 441456687, 443032569,
    283264821, 771641703, 452641455, 511306362, 117572859, 127701891, 721298331,
    176520078, 357242229, 611296308, 696994956, 405628839, 429224274, 465336054,
    695091546, 689828796, 574648641, 351220905, 507964023, 675326610, 517248963,
    453528621, 220301928, 494463186, 681789969, 339589656, 44524053,  417125457,
    339589404, 747135963, 341780733, 734158215, 396817281, 21997836,  5728464,
    147611205, 456248898, 714128667, 377654949, 3862068,   128418948, 589390074,
    304947090, 11703825,  228266073, 127304142, 429215724, 361541124, 521572968,
    468358191, 341231688, 65323503,  613778508, 15985323,  291661029, 410970006,
    591638112, 349541550, 89967528,  224922159, 361094166, 584206074, 640051812,
    324264456, 652625388, 693768537, 11740617,  309238398, 211085469, 194905872,
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    421403409, 475528473, 434685258, 1768977,   80301375,  708023862, 569195676,
    56238084,  632887668, 88089750,  631539342, 396695565, 38780154,  695798271,
    469819224, 439587099, 69045921,  682966116, 112310856, 64943298,  534475872,
    40215357,  389728458, 286368453, 736006257, 501181650, 54829908,  603489402,
    338032656, 512182818, 627500097, 462674016, 3103092,   157324491, 43978329,
    596818971, 259025598, 9088632,   91991781,  577291428, 211245489, 429471231,
    142626330, 172560633, 510907446, 444609585, 758102058, 375112647, 744786693,
    276174402, 19259856,  233672418, 745389414, 225772848, 23385663,  324290610,
    519804558, 120337812, 402578568, 360676008, 450089262, 551043738, 337388940,
    512108856, 28879011,  690040638, 106017282, 558262341, 99972432,  608226003,
    612152037, 42414435,  776201013, 39580443,  518796945, 494437752, 583194366,
    723936555, 415359657, 309569589, 751104774, 166684527, 249229170, 353120823,
    130668327, 753823584, 580966092, 561963717, 543672234, 393846327, 586278000,
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    466218648, 146037150, 585462906, 666008595, 691786683, 374707494, 622498779,
    231158277, 685740951, 115612245, 681825249, 545555745, 551718468, 277206615,
    640171035, 757727334, 195193908, 658656684, 457760646, 225925875, 505761984,
    18685233,  506832921, 112511021, 396846646, 290147622, 113924623, 669986155,
    336008070, 63611061,  238586775, 119956662, 616557739, 772784623, 334527774,
    410403148, 51933421,  0,         0,         0,         0,         0,
    0};
int n, m;
void init();
void input();
void work();
int main() {
  init();
  input();
  work();
}
void init() { ios::sync_with_stdio(false); }
void input() { cin >> n >> m; }
void work() {
  int nl = 0;
  while (n > 1) n >>= 1, ++nl;
  cout << ans[nl][m] << endl;
}
