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.

['J', '5149', 'H', 'L', 'm', 'h', '3863', 'n', 'z']
9012

['E', 'v', 'l', 'c', 'g', '3929', 'q', 'j']
3929

['4953', '4551', '659']

10163