#include<bits/stdc++.h>
using namespace std;
#define N (1000000000+7)
//#define N (998244353)
#define INF 1e16
typedef long long ll;

int main(void){
    int n;
    cin>>n;
    while(n--){
        ll p;
        cin>>p;
        if(p==2){
            cout<<2<<endl;
            continue;
        }
        cout<<(p-1)*(p-1)<<endl;
    }
}