#include <iostream>
#include <algorithm>
#include <iomanip>
#include <vector>
#include <queue>
#include <set>
#include <map>

using namespace std;
typedef long long ll;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout << setprecision(10) << fixed;
    int n; cin >> n;
    for(int i = 0; i < n; i++){
        ll p; cin >> p;
        if(p == 2){
            cout << 2 << endl;
            continue;
        }
        cout << (p-1)*(p-1) << endl;
    }
}