Functions

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

#define int long long
const int N = 1e5 + 5;
int a[N] , cnt[N];

// t <= 0 berk
// 1 <= t <= 99 maye
// t >= 100 qaz

string fi(int t){
    if(t <= 0)
        return "berk";
    if(t <= 99)
        return "maye";
    return "qaz";
}
// n! = 1 * 2 * 3 * . . . (n - 1) * n = (n - 1)! * n

int f(int n){
    if(n == 0)
        return 1;
    return n * f(n - 1);
}


int sum(int a , int b){
    return a + b;
}

/*
recursive
f(5) = 5 * f(4) = 5 * 24 = 120
f(4) = 4 * f(3) = 4 * 6 = 24
f(3) = 3 * f(2) = 3 * 2 = 6
f(2) = 2 * f(1) = 2 * 1 = 2
f(1) = 1 * f(0) = 1 * 1 = 1
f(0) = 1
*/

bool parity(int n){
    return n % 2 == 0;
}

void solve(){
    int n;
    cin >> n;
    if(n < 0)
        return ;
    cout << f(n) << '\n';
}


signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int t;
    cin >> t;
    while(t--)
        solve();
}