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 practice_csharp
{
    class Program
    {
        private static Dictionary<string,int> Day = new Dictionary<string, int>()
        {
            {"SUN",7},
            {"SAT",1},
            {"FRI",2},
            {"THU",3},
            {"WED",4},
            {"TUE",5},
            {"MON",6}
        };
        static void Main(string[] args)
        {
            var after = Day[Console.ReadLine()];
            Console.WriteLine(after);
        }
    }
}