Problem:
Score : 100 points

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)?

Constraints

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

Input

Input is given from Standard Input in the following format:

S

Output

Print the number of days before the next Sunday.

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.

Solution in Python (3.4.3) (judge verdict: Runtime Error)

S=input()
if S="SUN":
  print("0")
elif S="MON":
  print("1")
elif S="TUE":
  print("2")
elif S="Wed":
  print("3")
elif S="THU":
  print("4")
elif S="FRI":
  print("5")
elif S="SAT":
  print("6")