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.Scanner;

public class Main {
	public static void main (String args[]) {
		Scanner scan = new Scanner(System.in);
		String s = scan.next();
		if(s.equals("SAT")) System.out.print(1);
		if(s.equals("SUN")) System.out.print(7);
		if(s.equals("MON")) System.out.print(6);
		if(s.equals("TUE")) System.out.print(5);
		if(s.equals("WED")) System.out.print(4);
		if(s.equals("THU")) System.out.print(3);
		if(s.equals("FRI")) System.out.print(2);

	}
}