rt

#include<cstdio>
using namespace std;
int main ()
{
	int t;
	long long n;
	scanf("%d",&t);
	for(int i=1;i<=t;i++){
		scanf("%lld",&n);
		if(n==1)
		{
			printf("1");
			continue;
		}
		printf("%lld\n",(long long)n*(n-1));
	}
	return 0; 
}

蒟蒻求改