#include <fstream>
using namespace std;

ifstream fin("patrate2.in");
ofstream fout("patrate2.out");

int n, m, i, j, ok, maxim;
int v[1000020], minim,  x;

void write(){
    for(i = v[0]; i >= 1; i --){
        fout << v[i];
    }
    return;
}

void part_2(){
    for(i = 1; i <= n * n; i ++){
        x = 0;
        for(j = 1; j <= v[0]; j ++){
            v[j] = v[j] * 2 + x;
            x = v[j] / 10;
            v[j] %= 10;
        }
        while(x != 0){
            v[++v[0]] = x % 10;
            x /= 10;
        }
    }
    return;
}

void part_1(){
    for(i = 1; i < n; i ++){
        x = 0;
        for(j = 1; j <= v[0]; j ++){
            v[j] = v[j] * i + x;
            x = v[j] / 10;
            v[j] %= 10;
        }
        while(x != 0){
            v[++ v[0]] = x % 10;
            x /= 10;
        }
    }
    return;
}

void code(){
    part_1();
    part_2();
    return;
}

void setup(){
    m = n;
    while(m != 0){
        v[++ v[0]] = m % 10;
        m /= 10;
    }
    return;
}

void read(){
    fin >> n;
    return;
}

void program(){
    read(); setup();
    code(); write();
    return;
}

int main(){
    program();
    return 0;
}