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.

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

A: 56191
****
Q: ['2039', '1679', '9675', 'S', 'J', '2069', 'r', 'e']

A: 15462
****
Q: ['4089', '2385', 'E', 'K', '259', '295', '6649', '8645', 'n', '2577', '2683', '9041', 'Q', 'm', '4237']

A:
40860
****