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]: ['h', '1157', 'm', '8975', '6165', '7491', '1855', '3489', '9629', '631', '9641']
[A]: 49033


[Q]: ['I', '1941', '2423', '3381', 'J', '6589', 'h', 'D']
[A]: 14334


[Q]: ['r', '1153', '279', 'H', 'L', 'V', 's', '5543', 'm', '2241', 's', '939', 'o', 'N', 'V', 'I', '7031', 'Q', 'w']
[A]:
17186