#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <cstring>
#include <cmath>
using namespace std;
using ll = long long;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    int n;
    cin >> n;

    for (int i = 0; i < n; i++) {
        int p;
        cin >> p;

        ll r;
        if (p == 2) {
            r = 2;
        } else {
            r = p - 1;
            r *= r;
        }

        cout << r << '\n';
    }

    return 0;
}