#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); ++i)

using std::cin;
using std::cout;
using ll = long long;

int main() {
	int n;
	cin >> n;
	
	rep(i, n) {
		ll p;
		cin >> p;
		if (p == 2) puts("2");
		else cout << (p - 1) * (p - 1) << '\n';
	}
	
	return 0;
}