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]: ['3051', 'Z', 'q', 'u', 'x', '2747', 'e', 'B', '4225', 'Q', 'R', '4629', 'F']
[EX A]: 14652

[EX Q]: ['6019', '1467', '3415', '7785']
[EX A]: 18686

[EX Q]: ['7023', 'N', '7947', 'N', 'w', '4651', '1295', '1855', '2253', 'M', '6911', '9807']
[EX A]:
41742