#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (long long i = 0; i < (n); ++i)
using ll = long long;
using P = pair<ll,ll>;
using vec = vector<ll>;
using vecp = vector<P>;
using mat = vector<vec>;
using matp = vector<vecp>;
const ll MOD = 1e9+7;
const ll INF = 1e18;
#define all(v) v.begin(), v.end()

int main(){
  ll N;
  cin >> N;
  rep(i,N){
    ll p;
    cin >> p;
    if(p==2){
      cout << 2 << endl;
    }else{
      cout << (p-1)*(p-1) << endl;
    }
  }
        
}