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.

['6255', '8457', 'V', 'z', '4405', 'X', '9267', '5329', 'I']
33713

['I', '1941', '2423', '3381', 'J', '6589', 'h', 'D']
14334

['b', 'x', '2879', '2137', '6595', 'M', '5347', '525', '5359', 'H', '3491', 'w', 'j', 'A', '5943', 'C']

32276