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)

import sys
input = sys.stdin.readline
# sys.setrecursionlimit(100000)


class Solver(object):
    def __init__(self):
        pass

    def solve(self, S):
        ans = {"SUN": 7, "MON": 6, "TUE": 5,
               "WED": 4, "THU": 3, "FRI": 2, "SAT": 1}
        print(ans[S])


def main():
    S = input().rstrip()

    solver = Solver()
    solver.solve(S)


if __name__ == "__main__":
    main()