PROGRAMMING:A+B
The title is very simple, please output the sum of two positive integers.
###Input format:
Enter two positive integers a and B (0 < A, B < = 2 ^ 31) separated by spaces in one line
###Output format:
A + B.
###Input example:
```in
1 2
```
###Output example:
```out
three
```
answer：If there is no answer, please comment
###Input format:
Enter two positive integers a and B (0 < A, B < = 2 ^ 31) separated by spaces in one line
###Output format:
A + B.
###Input example:
```in
1 2
```
###Output example:
```out
three
```
answer：If there is no answer, please comment