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;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CSharp_AtCoder
{

    
    class Program
    {
       
        static void Main(string[] args)
        {
            string S = Console.ReadLine();
            Dictionary<string, int> dic = new Dictionary<string, int>();

            dic["SUN"] = 0;
            dic["MON"] = 1;
            dic["TUE"] = 2;
            dic["WED"] = 3;
            dic["THU"] = 4;
            dic["FRI"] = 5;
            dic["SAT"] = 6;

            Console.WriteLine(7 - dic[S]);

        }
    }
}