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.Linq;
public class Hello{
    public static void Main(){
        // Your code here!
        
        string s = Console.ReadLine();
        if(s=="SUN"){
            Console.WriteLine("7");
        }else if(s=="MON"){
            Console.WriteLine("6");
        }else if(s=="TUE"){
            Console.WriteLine("5");
        }else if(s=="WED"){
            Console.WriteLine("4");
        }else if(s=="THU"){
            Console.WriteLine("3");
        }else if(s=="FRI"){
            Console.WriteLine("2");
        }else if(s=="SAT"){
            Console.WriteLine("1");
        }
    }
}