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.

['A', '6323', 'T', 'H', 'M', 'S', 'D', 'r', 'v', '8169', '7649', '5149', 'x', '6275']
33565

['7755', '8383', 'y', 'k', '4869', '2809']
23816

['a', '5081', 'J', '6923', 'W', '3071', '8057', '3795', '9235', 'i']

36162