Description
One day, tired from going to school, Takahashi wanted to know how many days there were until Saturday.
We know that the day was a weekday, and the name of the day of the week was S in English.
How many days were there until the first Saturday after that day (including Saturday but not the starting day）?
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S is Monday, Tuesday, Wednesday, Thursday, or Friday.
Input
Input is given from Standard Input in the following format:
Output
Print the answer as an integer.