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: ['g', '5301']

Answer: 5301


Question: ['6217', 'A', '1925', 'o', '1433']

Answer: 9575


Question: ['5265', 'i', '8463', '9901', '1579', 'H', 'c', '3693', 'n', 'a', '929', '8103']

Answer:
37933