#include <iostream>
#include <fstream>
#include <cmath>
using namespace std;

int a, n, sol, m ;

int exp(int x,int n)
{
    if(n<0) return exp(1/x,-n);
    if(n==0) return 1;
    if(n==1) return x;
    if(n%2==0) return exp(x*x,n/2);
    if(n%2) return x*exp(x*x,(n-1)/2);
}

int main()
{
    ifstream fin("inversmodular.in");
    ofstream fout("inversmodular.out");
    fin>>a>>n;
    int m=sol=n;
    sol=n-1;

    sol=exp(a,sol-1)%m;
    fout << sol;
    return 0;
}