#include <bits/stdc++.h>
using namespace std;
char *FS, *FT, BB[1 << 15];
int read() {
  int x = 1, i = 0;
  char ch;
  ch = (FS == FT && (FT = (FS = BB) + fread(BB, 1, 1 << 15, stdin), FS == FT)
            ? EOF
            : *FS++);
  while (!isdigit(ch)) {
    if (ch == EOF) {
      exit(0);
    }
    if (ch == '-') x = -1;
    ch = (FS == FT && (FT = (FS = BB) + fread(BB, 1, 1 << 15, stdin), FS == FT)
              ? EOF
              : *FS++);
  }
  while (isdigit(ch)) {
    i = i * 10 + ch - '0';
    ch = (FS == FT && (FT = (FS = BB) + fread(BB, 1, 1 << 15, stdin), FS == FT)
              ? EOF
              : *FS++);
  }
  return x * i;
}
int get(char *S) {
  char ch;
  int l = 0;
  ch = (FS == FT && (FT = (FS = BB) + fread(BB, 1, 1 << 15, stdin), FS == FT)
            ? EOF
            : *FS++);
  while (!isalnum(ch)) {
    if (ch == EOF) {
      exit(0);
    }
    ch = (FS == FT && (FT = (FS = BB) + fread(BB, 1, 1 << 15, stdin), FS == FT)
              ? EOF
              : *FS++);
  }
  while (isalnum(ch)) {
    S[l++] = ch;
    ch = (FS == FT && (FT = (FS = BB) + fread(BB, 1, 1 << 15, stdin), FS == FT)
              ? EOF
              : *FS++);
  }
  return l;
}
int DA[400] = {
    1,          2,          3,          4,          6,          8,
    9,          12,         16,         18,         24,         27,
    32,         36,         48,         54,         64,         72,
    81,         96,         108,        128,        144,        162,
    192,        216,        243,        256,        288,        324,
    384,        432,        486,        512,        576,        648,
    729,        768,        864,        972,        1024,       1152,
    1296,       1458,       1536,       1728,       1944,       2048,
    2187,       2304,       2592,       2916,       3072,       3456,
    3888,       4096,       4374,       4608,       5184,       5832,
    6144,       6561,       6912,       7776,       8192,       8748,
    9216,       10368,      11664,      12288,      13122,      13824,
    15552,      16384,      17496,      18432,      19683,      20736,
    23328,      24576,      26244,      27648,      31104,      32768,
    34992,      36864,      39366,      41472,      46656,      49152,
    52488,      55296,      59049,      62208,      65536,      69984,
    73728,      78732,      82944,      93312,      98304,      104976,
    110592,     118098,     124416,     131072,     139968,     147456,
    157464,     165888,     177147,     186624,     196608,     209952,
    221184,     236196,     248832,     262144,     279936,     294912,
    314928,     331776,     354294,     373248,     393216,     419904,
    442368,     472392,     497664,     524288,     531441,     559872,
    589824,     629856,     663552,     708588,     746496,     786432,
    839808,     884736,     944784,     995328,     1048576,    1062882,
    1119744,    1179648,    1259712,    1327104,    1417176,    1492992,
    1572864,    1594323,    1679616,    1769472,    1889568,    1990656,
    2097152,    2125764,    2239488,    2359296,    2519424,    2654208,
    2834352,    2985984,    3145728,    3188646,    3359232,    3538944,
    3779136,    3981312,    4194304,    4251528,    4478976,    4718592,
    4782969,    5038848,    5308416,    5668704,    5971968,    6291456,
    6377292,    6718464,    7077888,    7558272,    7962624,    8388608,
    8503056,    8957952,    9437184,    9565938,    10077696,   10616832,
    11337408,   11943936,   12582912,   12754584,   13436928,   14155776,
    14348907,   15116544,   15925248,   16777216,   17006112,   17915904,
    18874368,   19131876,   20155392,   21233664,   22674816,   23887872,
    25165824,   25509168,   26873856,   28311552,   28697814,   30233088,
    31850496,   33554432,   34012224,   35831808,   37748736,   38263752,
    40310784,   42467328,   43046721,   45349632,   47775744,   50331648,
    51018336,   53747712,   56623104,   57395628,   60466176,   63700992,
    67108864,   68024448,   71663616,   75497472,   76527504,   80621568,
    84934656,   86093442,   90699264,   95551488,   100663296,  102036672,
    107495424,  113246208,  114791256,  120932352,  127401984,  129140163,
    134217728,  136048896,  143327232,  150994944,  153055008,  161243136,
    169869312,  172186884,  181398528,  191102976,  201326592,  204073344,
    214990848,  226492416,  229582512,  241864704,  254803968,  258280326,
    268435456,  272097792,  286654464,  301989888,  306110016,  322486272,
    339738624,  344373768,  362797056,  382205952,  387420489,  402653184,
    408146688,  429981696,  452984832,  459165024,  483729408,  509607936,
    516560652,  536870912,  544195584,  573308928,  603979776,  612220032,
    644972544,  679477248,  688747536,  725594112,  764411904,  774840978,
    805306368,  816293376,  859963392,  905969664,  918330048,  967458816,
    1019215872, 1033121304, 1073741824, 1088391168, 1146617856, 1162261467,
    1207959552, 1224440064, 1289945088, 1358954496, 1377495072, 1451188224,
    1528823808, 1549681956, 1610612736, 1632586752, 1719926784, 1811939328,
    1836660096, 1934917632};
int main() {
  int l, r;
  scanf("%d %d", &l, &r);
  int L = lower_bound(DA, DA + 326, l) - DA;
  int R = lower_bound(DA, DA + 326, r + 1) - DA;
  printf("%d", R - L);
  return 0;
}
