You are given an array with several `"even"` words, one `"odd"` word, and some numbers mixed in.
Determine if any of the numbers in the array is the index of the `"odd"` word. If so, return `true`, otherwise `false`.
def odd_ball(arr):
    index = arr.index('odd')
    return index in arr
def odd_ball(arr):
    index = arr.index('odd')
    return index in arr