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.

[EX Q]: ['D', '1611', 'w', '8825', '8987', '3021', '9019', 's', '87', '9283', '5717', 'f', '1503', '6593', '8533', '785', 'g']
[EX A]: 63964

[EX Q]: ['7831', 'O', '6017', 'v', 'U', '5761', 'Q', 'Q', 'w', '8465', 'Z', 'P', 'i', 'u', '1635', 'n', '8471', '4213']
[EX A]: 42393

[EX Q]: ['4341', 'e', '6261', '6575', '201', 'D', 'V', 'a', '6083', '989', 'w', '1455']
[EX A]:
25905