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 Fortran (GNU Fortran 9.2.1) (judge verdict: Accepted)

program prob80
    implicit none
    character(3) :: s
    character(3) :: t(7)
    integer :: i
    read(*,*) s
    t = (/"SUN","MON","TUE","WED","THU","FRI","SAT"/)

    do i = 1, 7
        if(t(i) == s) then
            write(*,*) 8-i
        end if
    end do

    stop
contains
end program prob80