#include<stdio.h>

int main() {
    int a, b, joined;
    
    scanf("%d%d", &a, &b);
    if (b < 10) {
        joined = a * 10 + b;
    } else if (b < 100) {
        joined = a * 100 + b;
    } else {
        joined = a * 1000 + b;
    }
    
    switch (joined) {
        case 1:
        case 4:
        case 9:
        case 16:
        case 25:
        case 36:
        case 49:
        case 64:
        case 81:
        case 100:
        case 121:
        case 144:
        case 169:
        case 196:
        case 225:
        case 256:
        case 289:
        case 324:
        case 361:
        case 400:
        case 441:
        case 484:
        case 529:
        case 576:
        case 625:
        case 676:
        case 729:
        case 784:
        case 841:
        case 900:
        case 961:
        case 1024:
        case 1089:
        case 1156:
        case 1225:
        case 1296:
        case 1369:
        case 1444:
        case 1521:
        case 1600:
        case 1681:
        case 1764:
        case 1849:
        case 1936:
        case 2025:
        case 2116:
        case 2209:
        case 2304:
        case 2401:
        case 2500:
        case 2601:
        case 2704:
        case 2809:
        case 2916:
        case 3025:
        case 3136:
        case 3249:
        case 3364:
        case 3481:
        case 3600:
        case 3721:
        case 3844:
        case 3969:
        case 4096:
        case 4225:
        case 4356:
        case 4489:
        case 4624:
        case 4761:
        case 4900:
        case 5041:
        case 5184:
        case 5329:
        case 5476:
        case 5625:
        case 5776:
        case 5929:
        case 6084:
        case 6241:
        case 6400:
        case 6561:
        case 6724:
        case 6889:
        case 7056:
        case 7225:
        case 7396:
        case 7569:
        case 7744:
        case 7921:
        case 8100:
        case 8281:
        case 8464:
        case 8649:
        case 8836:
        case 9025:
        case 9216:
        case 9409:
        case 9604:
        case 9801:
        case 10000:
        case 10201:
        case 10404:
        case 10609:
        case 10816:
        case 11025:
        case 11236:
        case 11449:
        case 11664:
        case 11881:
        case 12100:
        case 12321:
        case 12544:
        case 12769:
        case 12996:
        case 13225:
        case 13456:
        case 13689:
        case 13924:
        case 14161:
        case 14400:
        case 14641:
        case 14884:
        case 15129:
        case 15376:
        case 15625:
        case 15876:
        case 16129:
        case 16384:
        case 16641:
        case 16900:
        case 17161:
        case 17424:
        case 17689:
        case 17956:
        case 18225:
        case 18496:
        case 18769:
        case 19044:
        case 19321:
        case 19600:
        case 19881:
        case 20164:
        case 20449:
        case 20736:
        case 21025:
        case 21316:
        case 21609:
        case 21904:
        case 22201:
        case 22500:
        case 22801:
        case 23104:
        case 23409:
        case 23716:
        case 24025:
        case 24336:
        case 24649:
        case 24964:
        case 25281:
        case 25600:
        case 25921:
        case 26244:
        case 26569:
        case 26896:
        case 27225:
        case 27556:
        case 27889:
        case 28224:
        case 28561:
        case 28900:
        case 29241:
        case 29584:
        case 29929:
        case 30276:
        case 30625:
        case 30976:
        case 31329:
        case 31684:
        case 32041:
        case 32400:
        case 32761:
        case 33124:
        case 33489:
        case 33856:
        case 34225:
        case 34596:
        case 34969:
        case 35344:
        case 35721:
        case 36100:
        case 36481:
        case 36864:
        case 37249:
        case 37636:
        case 38025:
        case 38416:
        case 38809:
        case 39204:
        case 39601:
        case 40000:
        case 40401:
        case 40804:
        case 41209:
        case 41616:
        case 42025:
        case 42436:
        case 42849:
        case 43264:
        case 43681:
        case 44100:
        case 44521:
        case 44944:
        case 45369:
        case 45796:
        case 46225:
        case 46656:
        case 47089:
        case 47524:
        case 47961:
        case 48400:
        case 48841:
        case 49284:
        case 49729:
        case 50176:
        case 50625:
        case 51076:
        case 51529:
        case 51984:
        case 52441:
        case 52900:
        case 53361:
        case 53824:
        case 54289:
        case 54756:
        case 55225:
        case 55696:
        case 56169:
        case 56644:
        case 57121:
        case 57600:
        case 58081:
        case 58564:
        case 59049:
        case 59536:
        case 60025:
        case 60516:
        case 61009:
        case 61504:
        case 62001:
        case 62500:
        case 63001:
        case 63504:
        case 64009:
        case 64516:
        case 65025:
        case 65536:
        case 66049:
        case 66564:
        case 67081:
        case 67600:
        case 68121:
        case 68644:
        case 69169:
        case 69696:
        case 70225:
        case 70756:
        case 71289:
        case 71824:
        case 72361:
        case 72900:
        case 73441:
        case 73984:
        case 74529:
        case 75076:
        case 75625:
        case 76176:
        case 76729:
        case 77284:
        case 77841:
        case 78400:
        case 78961:
        case 79524:
        case 80089:
        case 80656:
        case 81225:
        case 81796:
        case 82369:
        case 82944:
        case 83521:
        case 84100:
        case 84681:
        case 85264:
        case 85849:
        case 86436:
        case 87025:
        case 87616:
        case 88209:
        case 88804:
        case 89401:
        case 90000:
        case 90601:
        case 91204:
        case 91809:
        case 92416:
        case 93025:
        case 93636:
        case 94249:
        case 94864:
        case 95481:
        case 96100:
        case 96721:
        case 97344:
        case 97969:
        case 98596:
        case 99225:
        case 99856:
            printf("Yes");
            break;
        default:
            printf("No");
            break;
    }
}

Measured memory_bytes: 128