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', '3135', 'J', 'm', 'a']

Answer: 3135


Question: ['D', '8591', 'b', 'n', 'e', '883', '8923', '245', 'z', '5643', 'C', '2911', '9275', '711', '7299', '3449', '4799', '6065']

Answer: 58794


Question: ['I', 'V', 'I', '9527', '5339', 'I', '5867', 'A', '9039', '9649', '4309', 'g', 'T', '9077', 'n', '6351']

Answer:
59158