while(line=readline()){
var lines = line.split(’ '); //字符串转换为字符数组
var a = parseInt(lines[0]);
var b = parseInt(lines[1]);
print(a+b);
}
while(line=readline()){
var lines = line.split(’ '); //字符串转换为字符数组
var a = parseInt(lines[0]);
var b = parseInt(lines[1]);
print(a+b);
}