#include <bits/stdc++.h>
using namespace std;
ifstream f("inversmodular.in");
ofstream g("inversmodular.out");
int64_t MOD;
int64_t a;
int64_t putere(int64_t b,int64_t e)
{
    if(e==0)
        return 1LL;
    int64_t r=putere(b,e/2);
    r=r*r%MOD;
    if(e%2==1)
        r=r*b%MOD;
    return r;
}

int main()
{
    f>>a>>MOD;
    g<<putere(a,MOD-2)<<'\n';
    return 0;
}