组合

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int T=in.nextInt();
        while(T-->0){
            int a=in.nextInt();
            int b=in.nextInt();
            int c=in.nextInt();
            long res=(long)a*b+(long)b*c+(long)c*a;
            System.out.println(res);
        }
    }
}