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.

['T', '8333', 'C', 'Z', 'n', '1419', 'd', '3205', 'D', '1187', 'd']
14144

['Q', '1767', '5523', 'I', '933', 'h', '2189', 'f', '7795', 'X', 'M', 'G', '1215', 'W', '8619']
28041

['J', '5575', '6281', 'e', '9459', '6845', 'Z', '3939', 'p', 'n', 'g', 'P', 'K', 'b', 'Q']

32099