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: ['7379', 'I', '2031', '8419', 'w', 'b', '9827', 'X', 'Y', 't', '3789', 'B', 'c', '6599', 'F', '6169', 'V']

Answer: 44213


Question: ['f', '6703', 'c', 'c', 'l', '2511', '6507', 'b', '9727', 'l', '1251', 'I', '5231', '91', 'L', 'M', 'd']

Answer: 32021


Question: ['1301', '4555', 'T', 'X', 'C', 'd', 't', 'T', '9221']

Answer:
15077