Given an integer num, return the number of digits in num that divide num.

An integer $val$ divides num if the remainder of num divided by $val$ is equal to $0$.

Constraints:

• $1 \leq$ num $\leq 10^9$

• num does not contain $0$ as one of its digits.

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We have a game for you to play. Rearrange the logical building blocks to develop a clearer understanding of how to solve this problem.

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