#include <fstream>

using namespace std;
ifstream in("inversmodular.in");
ofstream out("inversmodular.out");
int main()
{
    int a,n,i,prod=1;
    in>>a>>n;
    for(i=1;i<=n-2;i++)
            prod=(prod*a)%n;
      out<<prod%n;
    return 0;
}