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)

fun main(args : Array<String>) {
    var S = readString()

    when(S){
        "SUN"->{
            print(7)
        }
        "MON"->{
            print(6)
        }
        "TUE"->{
            print(5)
        }
        "WED"->{
            print(4)
        }
        "THU"->{
            print(3)
        }
        "FRI"->{
            print(2)
        }
        "SAT"->{
            print(1)
        }
    }
    return
}

fun readString() = readLine()!!