def telecine_patterns(clipa: vs.VideoNode, clipb: vs.VideoNode, length: int = 5) -> list[vs.VideoNode]:
a_select = [clipa.std.SelectEvery(length, i) for i in range(length)]
b_select = [clipb.std.SelectEvery(length, i) for i in range(length)]
return [
core.std.Interleave([
(b_select if i == j else a_select)[j] for j in range(length)
]) for i in range(length)
]