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]: ['u', 'i', 'z', 't', '9617', 'd', '3255', 'w', 'S', '3041', '7451']
[EX A]: 23364

[EX Q]: ['3215', 'h', '9133', '2771', 'F', 'x', '9033', '709', 'q']
[EX A]: 24861

[EX Q]: ['r', 'I']
[EX A]:
0