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