how cheat in leetcode 
ApproachComplexity
Time complexity:

Space complexity:
Code

<!-- Describe your first thoughts on how to solve this problem. -->

# Approach
<!-- Describe your approach to solving the problem. -->

# Complexity
- Time complexity:
<!-- Add your time complexity here, e.g. $$O(n)$$ -->

- Space complexity:
<!-- Add your space complexity here, e.g. $$O(n)$$ -->

# Code
```cpp []
class Solution {
public:
     int primePalindrome(int n) {
        if(n==1)return 2;
        	vector<long long>Vnm = { 2 ,3 ,5 ,7 ,11 ,101 ,131 ,151 ,181 ,191 ,313 ,353 ,373 ,383 ,727 ,757 ,787 ,797 ,919 ,929 ,10301 ,10501 ,10601 ,11311 ,11411 ,12421 ,12721 ,12821 ,13331 ,13831 ,13931 ,14341 ,14741 ,15451 ,15551 ,16061 ,16361 ,16561 ,16661 ,17471 ,17971 ,18181 ,18481 ,19391 ,19891 ,19991 ,30103 ,30203 ,30403 ,30703 ,30803 ,31013 ,31513 ,32323 ,32423 ,33533 ,34543 ,34843 ,35053 ,35153 ,35353 ,35753 ,36263 ,36563 ,37273 ,37573 ,38083 ,38183 ,38783 ,39293 ,70207 ,70507 ,70607 ,71317 ,71917 ,72227 ,72727 ,73037 ,73237 ,73637 ,74047 ,74747 ,75557 ,76367 ,76667 ,77377 ,77477 ,77977 ,78487 ,78787 ,78887 ,79397 ,79697 ,79997 ,90709 ,91019 ,93139 ,93239 ,93739 ,94049 ,94349 ,94649 ,94849 ,94949 ,95959 ,96269 ,96469 ,96769 ,97379 ,97579 ,97879 ,98389 ,98689 ,1003001 ,1008001 ,1022201 ,1028201 ,1035301 ,1043401 ,1055501 ,1062601 ,1065601 ,1074701 ,1082801 ,1085801 ,1092901 ,1093901 ,1114111 ,1117111 ,1120211 ,1123211 ,1126211 ,1129211 ,1134311 ,1145411 ,1150511 ,1153511 ,1160611 ,1163611 ,1175711 ,1177711 ,1178711 ,1180811 ,1183811 ,1186811 ,1190911 ,1193911 ,1196911 ,1201021 ,1208021 ,1212121 ,1215121 ,1218121 ,1221221 ,1235321 ,1242421 ,1243421 ,1245421 ,1250521 ,1253521 ,1257521 ,1262621 ,1268621 ,1273721 ,1276721 ,1278721 ,1280821 ,1281821 ,1286821 ,1287821 ,1300031 ,1303031 ,1311131 ,1317131 ,1327231 ,1328231 ,1333331 ,1335331 ,1338331 ,1343431 ,1360631 ,1362631 ,1363631 ,1371731 ,1374731 ,1390931 ,1407041 ,1409041 ,1411141 ,1412141 ,1422241 ,1437341 ,1444441 ,1447441 ,1452541 ,1456541 ,1461641 ,1463641 ,1464641 ,1469641 ,1486841 ,1489841 ,1490941 ,1496941 ,1508051 ,1513151 ,1520251 ,1532351 ,1535351 ,1542451 ,1548451 ,1550551 ,1551551 ,1556551 ,1557551 ,1565651 ,1572751 ,1579751 ,1580851 ,1583851 ,1589851 ,1594951 ,1597951 ,1598951 ,1600061 ,1609061 ,1611161 ,1616161 ,1628261 ,1630361 ,1633361 ,1640461 ,1643461 ,1646461 ,1654561 ,1657561 ,1658561 ,1660661 ,1670761 ,1684861 ,1685861 ,1688861 ,1695961 ,1703071 ,1707071 ,1712171 ,1714171 ,1730371 ,1734371 ,1737371 ,1748471 ,1755571 ,1761671 ,1764671 ,1777771 ,1793971 ,1802081 ,1805081 ,1820281 ,1823281 ,1824281 ,1826281 ,1829281 ,1831381 ,1832381 ,1842481 ,1851581 ,1853581 ,1856581 ,1865681 ,1876781 ,1878781 ,1879781 ,1880881 ,1881881 ,1883881 ,1884881 ,1895981 ,1903091 ,1908091 ,1909091 ,1917191 ,1924291 ,1930391 ,1936391 ,1941491 ,1951591 ,1952591 ,1957591 ,1958591 ,1963691 ,1968691 ,1969691 ,1970791 ,1976791 ,1981891 ,1982891 ,1984891 ,1987891 ,1988891 ,1993991 ,1995991 ,1998991 ,3001003 ,3002003 ,3007003 ,3016103 ,3026203 ,3064603 ,3065603 ,3072703 ,3073703 ,3075703 ,3083803 ,3089803 ,3091903 ,3095903 ,3103013 ,3106013 ,3127213 ,3135313 ,3140413 ,3155513 ,3158513 ,3160613 ,3166613 ,3181813 ,3187813 ,3193913 ,3196913 ,3198913 ,3211123 ,3212123 ,3218123 ,3222223 ,3223223 ,3228223 ,3233323 ,3236323 ,3241423 ,3245423 ,3252523 ,3256523 ,3258523 ,3260623 ,3267623 ,3272723 ,3283823 ,3285823 ,3286823 ,3288823 ,3291923 ,3293923 ,3304033 ,3305033 ,3307033 ,3310133 ,3315133 ,3319133 ,3321233 ,3329233 ,3331333 ,3337333 ,3343433 ,3353533 ,3362633 ,3364633 ,3365633 ,3368633 ,3380833 ,3391933 ,3392933 ,3400043 ,3411143 ,3417143 ,3424243 ,3425243 ,3427243 ,3439343 ,3441443 ,3443443 ,3444443 ,3447443 ,3449443 ,3452543 ,3460643 ,3466643 ,3470743 ,3479743 ,3485843 ,3487843 ,3503053 ,3515153 ,3517153 ,3528253 ,3541453 ,3553553 ,3558553 ,3563653 ,3569653 ,3586853 ,3589853 ,3590953 ,3591953 ,3594953 ,3601063 ,3607063 ,3618163 ,3621263 ,3627263 ,3635363 ,3643463 ,3646463 ,3670763 ,3673763 ,3680863 ,3689863 ,3698963 ,3708073 ,3709073 ,3716173 ,3717173 ,3721273 ,3722273 ,3728273 ,3732373 ,3743473 ,3746473 ,3762673 ,3763673 ,3765673 ,3768673 ,3769673 ,3773773 ,3774773 ,3781873 ,3784873 ,3792973 ,3793973 ,3799973 ,3804083 ,3806083 ,3812183 ,3814183 ,3826283 ,3829283 ,3836383 ,3842483 ,3853583 ,3858583 ,3863683 ,3864683 ,3867683 ,3869683 ,3871783 ,3878783 ,3893983 ,3899983 ,3913193 ,3916193 ,3918193 ,3924293 ,3927293 ,3931393 ,3938393 ,3942493 ,3946493 ,3948493 ,3964693 ,3970793 ,3983893 ,3991993 ,3994993 ,3997993 ,3998993 ,7014107 ,7035307 ,7036307 ,7041407 ,7046407 ,7057507 ,7065607 ,7069607 ,7073707 ,7079707 ,7082807 ,7084807 ,7087807 ,7093907 ,7096907 ,7100017 ,7114117 ,7115117 ,7118117 ,7129217 ,7134317 ,7136317 ,7141417 ,7145417 ,7155517 ,7156517 ,7158517 ,7159517 ,7177717 ,7190917 ,7194917 ,7215127 ,7226227 ,7246427 ,7249427 ,7250527 ,7256527 ,7257527 ,7261627 ,7267627 ,7276727 ,7278727 ,7291927 ,7300037 ,7302037 ,7310137 ,7314137 ,7324237 ,7327237 ,7347437 ,7352537 ,7354537 ,7362637 ,7365637 ,7381837 ,7388837 ,7392937 ,7401047 ,7403047 ,7409047 ,7415147 ,7434347 ,7436347 ,7439347 ,7452547 ,7461647 ,7466647 ,7472747 ,7475747 ,7485847 ,7486847 ,7489847 ,7493947 ,7507057 ,7508057 ,7518157 ,7519157 ,7521257 ,7527257 ,7540457 ,7562657 ,7564657 ,7576757 ,7586857 ,7592957 ,7594957 ,7600067 ,7611167 ,7619167 ,7622267 ,7630367 ,7632367 ,7644467 ,7654567 ,7662667 ,7665667 ,7666667 ,7668667 ,7669667 ,7674767 ,7681867 ,7690967 ,7693967 ,7696967 ,7715177 ,7718177 ,7722277 ,7729277 ,7733377 ,7742477 ,7747477 ,7750577 ,7758577 ,7764677 ,7772777 ,7774777 ,7778777 ,7782877 ,7783877 ,7791977 ,7794977 ,7807087 ,7819187 ,7820287 ,7821287 ,7831387 ,7832387 ,7838387 ,7843487 ,7850587 ,7856587 ,7865687 ,7867687 ,7868687 ,7873787 ,7884887 ,7891987 ,7897987 ,7913197 ,7916197 ,7930397 ,7933397 ,7935397 ,7938397 ,7941497 ,7943497 ,7949497 ,7957597 ,7958597 ,7960697 ,7977797 ,7984897 ,7985897 ,7987897 ,7996997 ,9002009 ,9015109 ,9024209 ,9037309 ,9042409 ,9043409 ,9045409 ,9046409 ,9049409 ,9067609 ,9073709 ,9076709 ,9078709 ,9091909 ,9095909 ,9103019 ,9109019 ,9110119 ,9127219 ,9128219 ,9136319 ,9149419 ,9169619 ,9173719 ,9174719 ,9179719 ,9185819 ,9196919 ,9199919 ,9200029 ,9209029 ,9212129 ,9217129 ,9222229 ,9223229 ,9230329 ,9231329 ,9255529 ,9269629 ,9271729 ,9277729 ,9280829 ,9286829 ,9289829 ,9318139 ,9320239 ,9324239 ,9329239 ,9332339 ,9338339 ,9351539 ,9357539 ,9375739 ,9384839 ,9397939 ,9400049 ,9414149 ,9419149 ,9433349 ,9439349 ,9440449 ,9446449 ,9451549 ,9470749 ,9477749 ,9492949 ,9493949 ,9495949 ,9504059 ,9514159 ,9526259 ,9529259 ,9547459 ,9556559 ,9558559 ,9561659 ,9577759 ,9583859 ,9585859 ,9586859 ,9601069 ,9602069 ,9604069 ,9610169 ,9620269 ,9624269 ,9626269 ,9632369 ,9634369 ,9645469 ,9650569 ,9657569 ,9670769 ,9686869 ,9700079 ,9709079 ,9711179 ,9714179 ,9724279 ,9727279 ,9732379 ,9733379 ,9743479 ,9749479 ,9752579 ,9754579 ,9758579 ,9762679 ,9770779 ,9776779 ,9779779 ,9781879 ,9782879 ,9787879 ,9788879 ,9795979 ,9801089 ,9807089 ,9809089 ,9817189 ,9818189 ,9820289 ,9822289 ,9836389 ,9837389 ,9845489 ,9852589 ,9871789 ,9888889 ,9889889 ,9896989 ,9902099 ,9907099 ,9908099 ,9916199 ,9918199 ,9919199 ,9921299 ,9923299 ,9926299 ,9927299 ,9931399 ,9932399 ,9935399 ,9938399 ,9957599 ,9965699 ,9978799 ,9980899 ,9981899 ,9989899,100030001 };
                 for(int i=0;i<Vnm.size();i++)if(Vnm[i]>=n)return Vnm[i];
    return 0;
    }
};
```
['C++']