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 Kotlin (1.0.0) (judge verdict: Accepted)

import java.lang.Math

fun main(args: Array<String>)
{
    val MOD: Long = 1000000007L // (1e+9)+7

    val s = readLine()!!
    when (s) {
        "SUN" -> {println(7)}
        "MON" -> {println(6)}
        "TUE" -> {println(5)}
        "WED" -> {println(4)}
        "THU" -> {println(3)}
        "FRI" -> {println(2)}
        "SAT" -> {println(1)}
    }
}