#include <stdio.h>
int bp (int a) {
	int s;
	s = a * a;
	return s;
}
int main(void) {
	int n, a;
	scanf("%d", &n);
	 for (int i = 0; i < n; i++){
		scanf ("%d", &a);
		printf("%d\n", bp(a));}
	return 0;
}