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: ['v', 'a', 'O', 'S', 'r', 'T', 'r', 'K', 'K', '7781', '1749']

Answer: 9530


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

Answer: 14334


Question: ['K', '5875', 'h', 'p', 'R', 'D', 'Z', 'S', 'f', '9629', 'o', '4461', 'U', '3117', '4051', '2899']

Answer:
30032