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.

['M', '5201', '2787', 'z', '9465', 'X', 'X', '4017', '8305', 'y', '6897', 'y', '6045', '9863', 's', 'd', '3611', 'l', 'd']
56191

['i', 'o', '5363', '5937', 'x', '6705', 'w', '5495', 'E', '9823', 'F', '83', '8443', '5223']
47072

['u', 'o', '4751', 'M', 'T', '7671', '5551', 'w', '4311', '9673', 'p', '6751', '4133', 'R', '177', '1523', 'S', '5345']

49886