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 scanner = new Scanner(System.in);
 		String S = scanner.next();
 		int day = 0;
 		if (S.equals("SAT")) {
 			day = 1;
 		} else if (S.equals("FRI")) {
 			day = 2;
 		} else if (S.equals("THU")) {
 			day = 3;
 		} else if (S.equals("WED")) {
 			day = 4;
 		} else if (S.equals("TUE")) {
 			day = 5;
 		} else if (S.equals("MON")) {
 			day = 6;
 		} else if (S.equals("SUN")) {
 			day = 7;
 		}
 		System.out.println(day);
	}
}