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: Wrong Answer)

    function main(arg) {
        if(arg=="SUN"){console.log(7)}
        if(arg=="MON"){console.log(6)}
        if(arg=="TUE"){console.log(5)}
        if(arg=="WED"){console.log(4)}
        if(arg=="THU"){console.log(3)}
        if(arg=="FRI"){console.log(2)}
        if(arg=="SAT"){console.log(1)}
    }
    main(require('fs').readFileSync('/dev/stdin', 'utf8'));