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.

['Y', 'X']
0

['7361', '6913', '3605', '2081', '7619']
27579

['p', 'S', '6625', '4295', 'm', 'X', 'P', '1897', '8647', 'c', 'A', '5619', '5499', '113', '6527', 'h', 'v']

39222