#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
    int N;
    cin >> N;
    ll p[N];
    for (int i = 0; i < N; i++) {
        cin >> p[i];
    }
    for (int i = 0; i < N; i++) {
        if (p[i] == 2) {
            cout << 2 << "\n";
        } else {
            ll t = p[i] - 1;
            cout << t * t << "\n";
        }
    }
    return 0;
}