#include <bits/stdc++.h>

using namespace std;

ifstream fin("patrate2.in");
ofstream fout("patrate2.out");
long long n, k, i, r[1002] = {1, 1};

static inline void prod(int x) {
    int t = 0, i = 1;
    while(i <= r[0] || t) {
        t += r[i] * x;
        r[i] = t % 10;
        t /= 10;
        i++;
    }
    r[0] = i - 1;
}

int main() {
    fin >> n >> k;
    for(i = 2; i <= n; i++) prod(i);
    for(i = 1; i <= n * n; i++) prod(2);
    for(i = r[0]; i >= 1; i--) fout << r[i];

    return 0;
}