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: ['5347', 'E', 'a', '5379', '405', '1171', 'v', 'J']

Answer: 12302


Question: ['2039', '1679', '9675', 'S', 'J', '2069', 'r', 'e']

Answer: 15462


Question: ['L', 'i', '7411', 'v', 'C', 'j', '1635', '3883', '1433', '693', 'y', 'J', '3049', 'Q', '291', '6985']

Answer:
25380