#include <bits/stdc++.h>

using namespace std;

const int nmax = 400, base = 1e9;
int a[5 + nmax];

void mult(int x, int &nc) {
    long long t = 0;
    for (int i = 0; i < nc; ++i) {
        a[i] = (t += 1ll * x * a[i]) % base;
        t /= base;
    }
    while (t) {
        a[nc++] = t % base;
        t /= base;
    }
}

int main() {
    ifstream fin("patrate2.in");
    ofstream fout("patrate2.out");
    int n;
    fin >> n;
    int nc = 1;
    a[0] = 1;
    for (int i = 1; i <= n * n; ++i) {
        mult(2, nc);
        if (i <= n) {
            mult(i, nc);
        }
    }
    fout << a[nc - 1];
    for (int i = nc - 2; i >= 0; --i) {
        for (int j = 10; j < base; j *= 10) {
            if (a[i] < j) {
                fout << "0";
            }
        }
        fout << a[i];
    }
    fout << '\n';
    return 0;
}