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.util.HashMap;
import java.util.Scanner;

public class Main{
	public static void main(String args[]){
		
		HashMap<String, Integer> day = new HashMap<String, Integer>();
		day.put("SUN",7);
		day.put("MON",6);
		day.put("TUE",5);
		day.put("WED",4);
		day.put("THU",3);
		day.put("FRI",2);
		day.put("SAT",1);

		Scanner sc = new Scanner(System.in);
		System.out.println(day.get(sc.next()));
	}
}