#include <cstdio>
#include <cmath>
using namespace std;
int main()
{
    freopen("inversmodular.in","r",stdin);
    freopen("inversmodular.out","w",stdout);
    long long n,a;
    scanf("%lld%lld",&a,&n);
    long long i;
    long long s=1;
    s=pow(a,n-2);
    printf("%d",s%n);
    return 0;
}