#include <iostream>

using namespace std;

int A, M;

int expLog_modM(int base, int pow) {
    if (pow == 0) return 1;

    int mid = expLog_modM(base, pow >> 1);

    if (pow&1) return (base * mid * mid) % M;
    return (mid * mid) % M;
}

int main()
{
    freopen("inversmodular.in", "r", stdin);
    freopen("inversmodular.out", "w", stdout);

    scanf("%d %d", &A, &M);
    printf("%d\n", expLog_modM(A, M-2));

    return 0;
}