lists = [1, 1, 2, 3, 4, 5, 6] lists.remove(1) lists.extend([7,8,9]) print(lists)
[2,3,4,5,6]
[1,2,3,4,5,6,[7,8,9]]
[1,2,3,4,5,6,7,8,9]
[2,3,4,5,6,7,8,9]
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