import sys while(1): line = sys.stdin.readline() a, b = line.split() if a == '0' and b == '0': break print(int(a)+int(b)) import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); while(true){ String[] line = ..