#include <bits/stdc++.h>

using namespace std;

ifstream fin("inversmodular.in");
ofstream fout("inversmodular.out");

int LogP(int a, int n, int P)
{
    int rez = 1;
    while(n > 0)
    {
        if (n % 2 == 1)
            rez = 1LL * rez * a % P;
        n /= 2;
        a = 1LL * a * a % P;
    }
    return rez;
}

int main()
{
    long long a, P;
    fin >> a >> P;
    fout << LogP(a, P - 2, P);

    return 0;
}