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]: ['I', 'n', '3069', '477', 'F', 'k', '847', '6777', 'N', 'X', 'F', '1417', '9445', 'o', 'v', 'd', '2169', 'w']
[EX A]: 24201

[EX Q]: ['3433', '6955', 'Q', 'E', '3557', 'S', '2931', '9879', 'S', 'f', 'Q']
[EX A]: 26755

[EX Q]: ['729', 'I', '6847', '6257', '3239', '9631', '6707', 'K', 'Q', '2273', '1249', 'v', 'H', '1661', 'p', 'o', 'h', 'o', 'm']
[EX A]:
38593