def doop(x:Int)
    when x is 1,2,3,4
        say "smol"
    is 5
        say "five"
    is 0
        pass
    is -1
        return
    else
        say "other"

doop(1)
doop(2)
doop(5)
doop(0)
doop(-1)
doop(99)