What do these lines print?>>> a = [1, 2, 3, 4]>>> b = a>>> a[2] = 10>>> b

Sure, here is the step-by-step explanation of what these lines of code print:

1. a = [1, 2, 3, 4]: This line creates a list a with elements [1, 2, 3, 4].
2. b = a: This line assigns the reference of a to b, meaning that b now points to the same list as a.
3. a[2] = 10: This line modifies the value at index 2 of list a to be 10. So, the list a becomes [1, 2, 10, 4].
4. b: This line prints the value of b, which is a reference to the modified list [1, 2, 10, 4].

Therefore, the output of these lines of code will be [1, 2, 10, 4].