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 C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Collections.Generic;

namespace ABC146A
{
    class Program
    {
        static void Main(string[] args)
        {
            var weeks = new Dictionary<string, string> { { "SUN", "7"}, { "MON", "6" }, { "TUE", "5" }, { "WED", "4" }, { "THU", "3" }, { "FRI", "2" }, { "SAT", "1" } };
            var S = Console.ReadLine();

            Console.WriteLine(weeks[S]);

        }
    }
}