Two-sum

Per-Magnus is trying to add two integers, but he never learned how to.

Write a program to help him with this most difficult task!

The input consists of a single line with two integers $0 \le a \le 1\, 000$ and $0 \le b \le 1\, 000$.

Output a single integer, the sum $a + b$.

Sample Input 1 | Sample Output 1 |
---|---|

1 1 |
2 |

Sample Input 2 | Sample Output 2 |
---|---|

2 2 |
4 |