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 PHP7 (7.0.15) (judge verdict: Accepted)

<?php
  
  fscanf(STDIN,"%s",$s);

$array = [
'SUN' => '7',
'MON' => '6',
'TUE' => '5',
'WED' => '4',
'THU' => '3',
'FRI' => '2',
'SAT' => '1'
  ];
  
  echo $array[$s];