#include<bits/stdc++.h>
using namespace std;
using LL = long long;
using ULL = unsigned long long;
#define rep(i,n) for(int i=0; i<(n); i++)

int main() {
 int N; cin>>N;
 rep(n,N){
  ULL p; cin>>p;
  ULL ans=(p-1)*(p-1);
  cout<<ans<<endl;
 }
 return 0;
}