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.

['v', '3135', 'J', 'm', 'a']
3135

['7379', 'I', '2031', '8419', 'w', 'b', '9827', 'X', 'Y', 't', '3789', 'B', 'c', '6599', 'F', '6169', 'V']
44213

['p', 'Z', '1135', '6725', 'd', 'A', 'g', '1997', 'b', '9505', 'L', '8887', '8647', '8965', 'N', 'u', '2103', 'l']

47964