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How many different codes of 5 numbers, can be made from a lock with 13 numbers? The codes can contain the same numbers. For example,

How many different codes of 5 numbers, can be made from a lock with 13 numbers?

The codes can contain the same numbers. For example, one code could be 1-2-3, while another is 2-3-2.

Hint: This problem is a permutation problem since you are taking numbers, with replacement. The numbers for each code could have similar numbers in the code.

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