Help me in solving BMJ18 problem

help
,
1

My issue

My code

import java.util.Scanner;

class Codechef
{
	public static void main (String[] args)
	{
		Scanner read = new Scanner(System.in);
		int c1=0;
		int c2=0;
		int c;
		int d;
		int t = read.nextInt();
		for(int i=0; i<t; i++)
		{
    		int a = read.nextInt();
    		int b = read.nextInt();
    		
    		    
    		
		}
    		
	}
}

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