#include <stdio.h>
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000000



int main(){

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

	return 0;
}