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.util.*;
public class Main{
public static void main(String[] args){
String[] days={"MON","TUE","WED","THU","FRI","SAT","SUN"};
Scanner s=new Scanner(System.in);
  String in=s.next();
  int mark;
 	for(int i=0;i<days.length;i++){
    if(in.equals(days[i])){
      int ans=6-i;
      if(ans==0)
        ans=0;
    System.out.println(ans);
      break;}
    }
}
}