java牛客网 输入输出

作者：管理员 链接：https://www.nowcoder.com/discuss/276 来源：牛客网

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextInt()) {//注意while处理多个case              int a = in.nextInt();
      int b = in.nextInt();
            System.out.println(a + b);
        }
    }
}