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.

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

[EX Q]: ['8353', 'f', '1799', '6985', '2975', 'J', '9105', 'f', 'v', 'C', 'V', '9327', '3015', 'e', 'h', '439', '4969', 'c']
[EX A]: 46967

[EX Q]: ['i', 'r', '9699', 'u', 'p', '6803', '3715', '8761', '5473']
[EX A]:
34451