When selecting 5 numbers from the digits $1,2,3,4$ with repetition allowed, how many cases are there where the digit 4 appears at most once? [3 points] (1) 45 (2) 42 (3) 39 (4) 36 (5) 33
When selecting 5 numbers from the digits $1,2,3,4$ with repetition allowed, how many cases are there where the digit 4 appears at most once? [3 points]\\
(1) 45\\
(2) 42\\
(3) 39\\
(4) 36\\
(5) 33