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.

['x', 'V', 'g', '5469', 'c', '7873', 'T', 'p', '8109', '5395', 'h', 'z', 'T', '9373']
36219

['4425', 'x', '1959', 'C', 'c', 'D', 'M', '8317', 'q', 'x', '4277', 'N', 'z', 'I', '1921', 'o', 't']
20899

['7465', '4837', '2371', '6581', '3309', 'H', '4679', 'F', 'C', 'i', 'p']

29242