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;
public class A
{
    public static void Main()
    {
        int x = 0 ;
        string Line = Console.ReadLine();
        if (Line == "SUN")
        {
            x = 7;
        }
        else if (Line == "MON")
        {
            x = 6;
        }else if (Line == "TUE")
        {
            x = 5;
        }else if (Line == "WED")
        {
            x = 4;
        }else if (Line == "THU")
        {
            x = 3;
        }else if (Line == "FRI")
        {
            x = 2;
        }else if (Line == "SAT")
        {
            x = 1;
        }
        Console.WriteLine(x);
    }
}