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 JavaScript (node.js v5.12) (judge verdict: Runtime Error)

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        String a = scan.next();
        int ans=0;
        if(a.equals("MON"))ans=6;
        if(a.equals("TUE"))ans=5;
        if(a.equals("WED"))ans=4;
        if(a.equals("THU"))ans=3;
        if(a.equals("FRI"))ans=2;
        if(a.equals("SAT"))ans=1;
        if(a.equals("SUN"))ans=7;
        System.out.println(ans);
    }
}