Problem Statement

Given is a string S representing the day of the week today.
S is SUN, MON, TUE, WED, THU, FRI, or SAT, for Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday, respectively.
After how many days is the next Sunday (tomorrow or later)?

Input

Input is given from Standard Input in the following format:
S

Output

Print the number of days before the next Sunday.

Constraints

• S is SUN, MON, TUE, WED, THU, FRI, or SAT.

Sample Input 1

SAT

Sample Output 1

1

It is Saturday today, and tomorrow will be Sunday.

Sample Input 2

SUN

Sample Output 2

7

It is Sunday today, and seven days later, it will be Sunday again.

见题面 Input 部分

见题面 Output 部分