#include <cstdio>

using namespace std;
long long n;
long long rez(long long x, long long y) {

    if(y == 0)
        return 1;

    long long d = rez(x, y/2);

    if(y%2 == 0)
        return d*d%n;
    else
        return d*d%n*x%n;
}

int main()
{
    freopen("inversmodular.in","r",stdin);
    freopen("inversmodular.out","w",stdout);
    long long a;
    scanf("%lld%lld",&a,&n);
    printf("%lld\n",rez(a,n-2));
    return 0;
}