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.

import java.util.Scanner;

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

输入两个数，打印其和
hasNext()方法判断时候有下一个输入的数据
while保证有多组数据