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

Answer: 56191


Question: ['h', 'a', '1645', '2391', '759', '519', '3331', '2831', '3427', '9893', 'u', 'J', '7391', '8379', 'V']

Answer: 40566


Question: ['b', 'u', 'n', 'e', '9155', '9971', 'W', 'K', '5269', 'M', '7193', '7193', 'y', '1967', 'S', 'T', 'Q', '2013', '1293']

Answer:
44054