hdu 2524 java

import java.util.Scanner;




public class P2524 {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int t=sc.nextInt();
while(t-->0){
int n=sc.nextInt();
int m=sc.nextInt();
long sum=(n*(n+1)/2)*(m*(m+1)/2);
System.out.println(sum);
}

}
}