Help me in solving BMJ18 problem

My issue

My code

import java.util.Scanner;

class Codechef
{
	public static void main (String[] args)
	{
		Scanner read = new Scanner(System.in);
		
		int t = read.nextInt();
		for(int i=0; i<t; i++)
		{
    		int a = read.nextInt();
    		int b = read.nextInt();
    		if(a == 0 && b == 0){
    		    System.out.println("7");
    		}
    		else{
    		    System.out.println(Math.min(a,b));// Update your code below this line to solve the problem
    		}
		}
	}
}

Learning course: Solve Programming problems using Java
Problem Link: CodeChef: Practical coding for everyone