Question: 4. Write function collatz() that takes a positive integer x as input and prints the Collatz sequence starting at x. A Collatz sequence is obtained

4. Write function collatz() that takes a positive integer x as input and prints the Collatz sequence starting at x. A Collatz sequence is obtained by repeatedly applying this rule to the previous number x in the sequence: x = x/2 if x is even 3x+ 1 if x is odd. Your function should stop when the sequence gets to number 1. Note: It is an open question whether the Collatz sequence of every positive integer always ends at 1.

>>> collatz(10)

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