PROGRAMMING:Find 1 + 2 + 3 + 4 + 5
Find the sum of 1 + 2 + 3 + 4 + 5.
###Output format:
Directly output the result of integer operation without any additional characters.
###Output example:
```out
fifteen
```
answer：If there is no answer, please comment
###Output format:
Directly output the result of integer operation without any additional characters.
###Output example:
```out
fifteen
```
answer：If there is no answer, please comment