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.
--------
Question: ['F', 'v', 'G', '6023', 'M', 'Q', 'A', '8477', '2079', 'A', '813', 'C', '3479', 'G', '1977', '5569', '8749', 'Y']

Answer: 37166


Question: ['7361', '3605', 'V', '2039', '9665', 'X', 'b', '1195', '657', '6509', '7195', '2013', '1847', 'v', '9499', '1761']

Answer: 53346


Question: ['b', '9459', '5073', '8481', '4705', '9819', '4041', '5161', '7275', '4083', 'v', '7585', '2559', '4245', '3257']

Answer:
75743