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 static System.Console;

namespace CantWaitForHoliday
{
    class Program
    {
        static void Main(string[] args)
        {
            String s = ReadLine();
            if(s == "SUN"){
                WriteLine(7);
                return;
            }else if(s == "MON"){
                WriteLine(6);
                return;
            }else if(s == "TUE"){
                WriteLine(5);
                return;
            }else if(s == "WED"){
                WriteLine(4);
                return;
            }else if(s == "THU"){
                WriteLine(3);
                return;
            }else if(s == "FRI"){
                WriteLine(2);
                return;
            }else if(s == "SAT"){
                WriteLine(1);
                return;
            }
            WriteLine("Hello World!");
        }
    }
}