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 Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.io.*;

class Main
{
  public static void main(String[] args)throws IOException
  {
    BufferedReader br =
     new BufferedReader(new InputStreamReader(System.in));

    String S = br.readLine();

    switch(S){
       case "SUN":
          System.out.println(7);
          break;
       case"MON":
          System.out.println(6);
          break;
       case"TUE":
          System.out.println(5);
          break;
       case"WED":
          System.out.println(4);
          break;
       case"THU":
          System.out.println(3);
          break;
       case"FRI":
          System.out.println(2);
          break;
       case"SAT":
          System.out.println(1);
          break;
    }
  }
}