I have some lists as the following:
[34, 34, 34, 35, 34, 37, 37, 37, 34, 34, 34, 34, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 39, 39, 38, 39, 38, 38, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 38, 38, 39, 38, 39, 39, 39, 39, 38, 38, 38, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 38, 38, 36, 38, 14, 14, 36, 38, 18, 33, 19, 19, 37, 38, 19, 18, 18, 37, 38, 39, 39, 38, 38, 38, 38, 14, 27, 32, 28, 30, 35, 35, 37, 38, 37, 14, 14, 14, 28, 14, 30, 16, 16, 37, 38, 39, 38, 12, 29, 12, 31, 35, 13, 31, 13, 12, 13, 13, 25, 14, 13, 12, 25, 31, 31, 34, 37, 14, 15, 25, 37, 37, 37, 37, 38, 15, 26, 25]
[33, 34, 34, 34, 34, 37, 37, 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, 39, 39, 38, 39, 39, 39, 39, 39, 35, 39, 39, 38, 38, 38, 38, 39, 38, 39, 37, 39, 39, 37, 37, 38, 39, 37, 38, 38, 38, 39, 18, 39, 39, 39, 39, 39, 39, 37, 16, 16, 32, 38, 39, 38, 36, 38, 36, 36, 35, 38, 39, 39, 39, 39, 37, 37, 37, 35, 38, 39, 39, 39, 39, 37, 39, 36, 35, 38, 38, 38, 36, 16, 34, 38, 36, 36, 37, 36, 32, 36, 36, 39, 39, 18, 19, 18, 37, 37, 38, 34, 38, 14, 14, 15, 37, 14, 37, 19, 30, 15, 36, 39, 17, 27, 37, 17, 18, 33, 38, 38, 38, 39, 38, 39, 38, 38, 38, 37, 35, 36, 34, 39, 33, 37, 39]
How do I write a function which can trim the list from the point with three consecutive numbers<20?
Thanks
