Problem Description
Calculate A + B.

 

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.

 

Sample Input
1 1
 

Sample Output
2
 


 
帮帮忙！！！有点急···谢谢

这样不对的，我也这样写的···

谢谢你！！！

我是新手上路，纯属菜鸟啊，今天提交一个下午都不对，所以才问的···