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

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

['s', 'R', '697', '7773', '9825', 'v', 'o', 'B', '9443', 'b', '9147', '2825']

39710