PROGRAMMING:How many days in one month

Develop a program to determine how many days in the given month of a year.
### Input Specification:
Each input file contains one test case, which gives a year and a month in a line. Seperate each by a period.
### Output Specification:
For each test case, print in a line the value of days.
### Sample Input:
Write a sample input here. For example:
```in
two thousand and six point three
```
### Sample Output:
Write the corresponding sample output here. For example:
```out
thirty-one
```







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