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: ['5289', '1701', '5925', '7973', 'F', 'V', 'y', '5903', 'i']

Answer: 26791


Question: ['b', '5689', '119', 'p', 'P', 'J', 'w', 'm', '7397', 'Y', '447', 'O', 'p', '319', 'H', 'U']

Answer: 13971


Question: ['5671', '8617', 'g', 'F', '7545']

Answer:
21833