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: Wrong Answer)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String str = br.readLine();
		int out =0;
		System.out.println(str);
		if(str.equals("SUN")) {
			out = 7;
		}else if(str.equals("MON")) {
			out = 6;
		}else if(str.equals("TUE")) {
			out = 5;
		}else if(str.equals("WED")) {
			out = 4;
		}else if(str.equals("THU")) {
			out = 3;
		}else if(str.equals("FRI")) {
			out = 2;
		}else if(str.equals("SAT")) {
			out = 1;
			
		}
		System.out.println(out);
	}

}