In this task, you are given an input list A. You need to find all the elements of the list that are numbers and calculate their sum.
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Question: ['I', '1941', '2423', '3381', 'J', '6589', 'h', 'D']

Answer: 14334


Question: ['4607', 'T', 'a', '6077', 'c', '4761']

Answer: 15445


Question: ['A', '9033', '865', '7721', 'q', '8005', 'e', 'B', '9227', 'j']

Answer:
34851