SWEA 12221 구구단2 D3 (자바 Java)

import java.util.Scanner;
import java.io.FileInputStream;
 
class Solution
{
    public static void main(String args[]) throws Exception
    {
        Scanner sc = new Scanner(System.in);
        int T;
        T=sc.nextInt();

        for(int test_case = 1; test_case <= T; test_case++)
        {
            int A = sc.nextInt();
            int B = sc.nextInt();
 
            if (A >= 1 && A <= 9 && B >= 1 && B <= 9) {
                System.out.println("#" + test_case + " " + (A * B));
            } else {
                System.out.println("#" + test_case + " -1");
            }
        }
    }
}