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: ['o', 'a', 'K', '6031']

Answer: 6031


Question: ['597', 'i', 'd', '3201', 'u', '1111', '8563', 'c', 'E', '5983', '6293']

Answer: 25748


Question: ['p', 'y', 'd', '8191', 'K', 'd', 'Y']

Answer:
8191