PROGRAMMING:[simple branch] [days of month a --]

Now, given a certain month, we need to output the number of days in that month, assuming that all years are regular years.
###Input format:
Enter a positive integer m for the month. M can only be a positive integer between \ [1 ~ 12 \].
###Output format:
Output the number of days in month M. after outputting the data, you need to output carriage return and line feed.
###Input example:
Here is a set of inputs. For example:
```in
five
```
###Output example:
The corresponding output is given here. For example:
```out
thirty-one
```







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