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

ll solve() {
  ll P;
  cin >> P;

  return P == 2 ? 2 : (P - 1) * (P - 1);
}

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

  ll t;
  cin >> t;
  while(t--) { cout << solve() << "\n"; }
}