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: Accepted)

pairs = (
    ("SUN", 7),
    ("MON", 6),
    ("TUE", 5),
    ("WED", 4),
    ("THU", 3),
    ("FRI", 2),
    ("SAT", 1)
)

date = input()
for pair in pairs:
    if pair[0] == date:
        print(pair[1])