程序设计基础实践(C班)第二次月考

F. Problem A+B (Big Integer)

单点时限: 2.0 sec

内存限制: 256 MB

Give two positive integer $A$ and $B$, calucate $A+B$.

Notice that $A,B$ is no more than $500$ digits.

输入格式

The test case contain several lines. Each line contains two positive integer $A$ and $B$.

输出格式

For each input line, output a line contain $A+B$.

样例

Input
2 3
1231231231823192 123123123123123
1000000000000000 1
Output
5
1354354354946315
1000000000000001