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]: ['V', '2633', '3269', 'r', 'Q', '3517', '2571', 'G', '4105', 'm', 'z', 'B', 'A']
[A]: 16095


[Q]: ['M', 'i', '241', 'z', 'n', '615']
[A]:
856