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', 'i', '8085', 'E', 'q']
[A]: 8085


[Q]: ['6907', '9123', 'L', '8871', 'q', 'C', 'U', '7403', 'F', '3827', '3951', '8879', '2865', 'x', '6175', 'T', '1147']
[A]: 59148


[Q]: ['k', 'q', '9385', 'A', 'E', 'u', '8667', '4919', '673', 'C', 'z', 'v', 'C', '257', 'A', 'L', '7711']
[A]:
31612