#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
using namespace std;
typedef long long int ll;
typedef pair<int,int> P;
#define yn {puts("YES");}else{puts("NO");}
#define MAX_N 200005

int main() {
    int n; cin >> n;
    rep(i,n){
        ll p; cin >> p;
        if(p == 2){
            cout << 2 << endl;
        }else{
            cout << (p-1)*(p-1) << endl;
        }
    }
    return 0;
}