#include <iostream>
#include <fstream>

using namespace std;

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

int a, MOD;

int FastPOW(int base, int exp)
{
    int ans = 1;
    int aux = base;

    for(int i = 0; (1 << i) <= exp; ++i) {
        if((exp >> i) & 1)
            ans = (1LL * ans * aux) % MOD;
        aux = (1LL * aux * aux) % MOD;
    }

    return ans;
}

int main()
{
    fin >> a >> MOD;
    fout << FastPOW(a, MOD - 2);
    return 0;
}