/*  This Code is Submitted by wywcgs for Problem 1995 on 2005-10-23 at 00:40:35 */ 
#include <cstdio>

int main()
{
	int N, n, i;
	int f[1024] = {1, 2};
	
	scanf("%d", &n);
	for(i = 2; i < 1024; i++) {
		f[i] = f[i-1] + 2 * (i-1);
	}
	for(i = 0; i < n; i++) {
		scanf("%d", &N);
		printf("%d\n", f[N]);
	}
	
	return 0;
}