A + B Problem

Problem Description
Calculate A + B.
Input
Each line will contain two integers A and B. Process to end of file.
Output
For each case, output A + B in one line.
Sample Input
1 1
Sample Output

2

import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner in=new Scanner(System.in);
int a,b;
while(in.hasNext())
{
a=in.nextInt();
b=in.nextInt();
System.out.println(a+b);
}
}
}