Filter List by Longest Element Containing a String

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I want to filter a list of all items containing the same last 4 digits, I want to print the longest of them.

For example:

lst = ['abcd1234','abcdabcd1234','gqweri7890','poiupoiupoiupoiu7890']
# want to return abcdabcd1234 and poiupoiupoiupoiu7890

In this case, we print the longer of the elements containing 1234, and the longer of the elements containing 7890. Finding the longest element containing a certain element is not hard, but doing it for all items in the list (different last four digits) efficiently seems difficult.

asked 45 secs ago

Noob Coder

450