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

#define all(v) v.begin(),v.end()
using ll = long long;
using ull = unsigned long long;
using vll=vector<ll>;
using vvll = vector<vector<ll>>;

int main(){
    ll T;
    cin >>T;
    while(T--){
        ll a;
        cin >>a;
        if(a==2){
            cout << 2 << endl;
        }else{
            cout << (a-1)*(a-1) << endl;
        }
    }
}