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.

['2325', '3259', '1947', '8065', 'H', '2329', 'h', 'l', 'k', 'R']
17925

['w', '7301', '9411', 'z', 'g', 'X', '1045', 'l', 'F', 'M', 'R', '7957', 'e', '5145']
30859

['1433', 'T', 'V', '6277', 'H', '7381', '7297', 'Z', '1103', 'v', '9645', 'O', 'h', '4141', '9405', 'Q', 'd']

46682