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

int main(){
	int N;
	long p;
	cin >> N;
	for(int i=0;i<N;i++){
		cin >> p;
		if(p==2){
			cout << 2 << endl;
			continue;
		}
		cout << (p-1)*(p-1) << endl;
	}
}