#include <bits/stdc++.h>
using namespace std;

#define pb push_back
#define dbg(x) cout << #x << ": " << x << "\n";
#define sz(x) ((int)x.size())

using ll = long long;

const string fn = "inversmodular";
ifstream fin(fn + ".in");
ofstream fout(fn + ".out");

int phi(int n)
{
    int ans = n;
    for (int i = 2; i * i <= n && n > 1; i++)
    {
        if (n % i == 0)
        {
            while (n % i == 0)
                n /= i;
            ans -= ans / i;
        }
    }
    if (n > 1)
        ans -= ans / n;
    return ans;
}

int expp(ll a, ll n, ll mod)
{
    ll p = 1;
    while (n)
    {
        if (n & 1)
            p = p * a % mod;
        a = a * a % mod;
        n >>= 1;
    }
    return p;
}

int main()
{

    int a, b;
    fin >> a >> b;
    fout << expp(a, phi(b) - 1, b) << '\n';

    return 0;
}