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 WaitingHoliday{
    public static void Main(string[] argc){
        string input = Console.ReadLine();
        int remainDays = HowManyDaysToNextHoliday(input);
        Console.WriteLine(remainDays);
    }

    public static int HowManyDaysToNextHoliday(string inputStr) {
        switch(inputStr){
            case "SUN":
            return 7;
            break;
            case "MON":
            return 6;
            break;  
            case "TUE":
            return 5;
            break;  
            case "WED":
            return 4;
            break;  
            case "THU":
            return 3;
            break;  
            case "FRI":
            return 2;
            break;  
            case "SAT":
            return 1;
            break;  
            default:
            return 0;
        }
    }
}