You are given a string time of length $5$ representing a $24$ hour clock format "hh:mm", where some digits may be replaced with the character '?'.

A valid clock time is between "00:00" and "23:59", inclusive.

Return the total number of valid clock times that can be formed by replacing each '?' with a digit from $0$ to $9$.

Constraints:

• time is a valid string of length $5$ in the format "hh:mm".

• "00" $\leq$ hh $\leq$ "23"

• "00" $\leq$ mm $\leq$ "59"

• Some of the digits might be replaced with '?' and need to be replaced with digits from $0$ to $9$.

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