task1

#include <iostream>

using namespace std;

void foo(long x) {
    if (x < 10) cout << 0;
    if (x < 100) cout << 0;
    if (x < 1000) cout << 0;
    if (x < 10000) cout << 0;
    if (x < 100000) cout << 0;
}

int main() {
    long n;
    cin >> n;
    long m;
    cin >> m;
    if (n == 0) {
        foo(1);
        cout << 1;
        exit(0);
    }
    if (n >= m) {
        foo(0);
        cout << 0;
    } else {
        long x = 1;
        for (long i = 1; i <= n; i++) {
            x *= i;
            x %= m;
        }
        foo(x);
        cout << x;
    }
}