#include <bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin >> N;
  for (int i = 0; i < N; i++){
    long long p;
    cin >> p;
    if (p == 2){
      cout << 2 << endl;
    } else {
      cout << (p - 1) * (p - 1) << endl;
    }
  }
}