Python Reverse -Liste jedes 2 Element

elems = list(range(10))
print(elems)
print(elems[::2])
print(elems[-2::-2])
# [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
# [0, 2, 4, 6, 8]
# [8, 6, 4, 2, 0]
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