杭电oj 1091 java

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import java.util.Scanner;

class Main {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner read = new Scanner(System.in);
        while(true) {
            int a = read.nextInt();
            int b = read.nextInt();
            if (a == 0 && b == 0) break;
            System.out.println(a+b);
        }
        read.close();
    }

}