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]: ['3013', '3955', 'f', '1183', '5111', '9509', '2351', '7087', 'f']
[EX A]: 32209

[EX Q]: ['1319', '6105', '1119', 'c', 'p', '7617', '5113', 'a', '5115', '6731', '6693']
[EX A]: 39812

[EX Q]: ['187', 'J', 'l', 'p', '1009', 'g', '5817', 'V', 'B', 'Z', '3329', '9253']
[EX A]:
19595