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.

['C', '3133', '2183', '5793', '9305', 'd', 'g', '6501']
26915

['9509', 'o', 'l', '9873', 'h', 'N', '2059', '8595', 'D', 'L', '5913', 'o', '1443', 'C', 'y', 'K', 'J', 'a', 'X', 'E']
37392

['2263', 'Y', '4435', 'M', 'M', '4935', 'd', '2931', 's', '9829', '3135', 'n', 'Y', 'g', 'Q', 'X']

27528