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: ['b', 's', 'v', '4757', '9063', 'I', '8397', '7975', 'Q']

Answer: 30192


Question: ['1001', 'T', 'w', 'f', 'Q', '4035', 'b', 'q', 'x', 'R']

Answer: 5036


Question: ['g', '6819', 'u', '7729', '5051', '161', '3249', 'y', 'y', 'S', 'j', 'H', 'f', 'G', '6679']

Answer:
29688