/* -*- coding: utf-8 -*-
 *
 * 1232.cc:  No.1232 2^x = x - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

const int MAX_N = 1000;

/* typedef */

typedef long long ll;

/* global variables */

/* subroutines */

/* main */

int main() {
  int n;
  scanf("%d", &n);

  while (n--) {
    int pi;
    scanf("%d", &pi);

    if (pi == 2) puts("2");
    else printf("%lld\n", (ll)(pi - 1) * (pi - 1));
  }
  return 0;
}