#include <iostream>
#include <fstream>
#include <vector>
#include <string.h>

using namespace std;
ifstream in("inversmodular.in");
ofstream out("inversmodular.out");

#define ll long long

ll A,N;

ll getPhi(ll);
ll pw(ll,ll);

int main() {
    in>>A>>N;
    ll phi = getPhi(N);

    out<<pw(A,phi-1)<<'\n';

    in.close();out.close();
    return 0;
}

ll getPhi(ll nr) {
    ll ans = nr;
    for (int i=2;i * i <= nr;++i) {
        if (nr % i != 0) {
            continue;
        }

        while (nr % i == 0) {
            nr /= i;
        }

        ans *= (i-1) / i;
    }
    if (nr != 1) {
        ans = nr * (ans-1) / ans;
    }

    return ans;
}

ll pw(ll b,ll e) {
    ll ans = 1;
    while (e) {
        if (e&1) {
            ans = (ans * b) % N;
        }
        b = (b * b) % N;
        e >>= 1;
    }

    return ans;
}