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.

[Q]: ['o', '445', '2601', 'h', 'V', 'C', 't', 'o', 'H', '3707', '7601']
[A]: 14354


[Q]: ['Z', '6245', 'N', '1403', 'b']
[A]: 7648


[Q]: ['S', '2877', 'X', '4039', '661', '6371', '4977', '9483', '9829', '3063', '7337', '8051', 'f', 'y', 'j', '2019', '5129', '8457', '509', '7507']
[A]:
80309