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;
class abc146_a{
  public static void Main(){
    String str = Console.ReadLine();
    int day;
    switch (str){
      case "SUN":
        day = 7;
        break;
      case "MON":
        day = 6;
        break;
      case "TUE":
        day = 5;
        break;
      case "WED":
        day = 4;
        break;
      case "THU":
        day = 3;
        break;
      case "FRI":
        day = 2;
        break;
      case "SAT":
        day = 1;
        break;
      default:
       day = 0;
       break;
    }
    Console.WriteLine(day);
  }
}