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: ['X', 'u', 'B', '269', '9089', 'M', '5175', 'K']

Answer: 14533


Question: ['h', '9539', '3373']

Answer: 12912


Question: ['a', 'F', '3987', 'J', 'P', 'p', '7059', 'n', 'o', '1523', '9991', '169', '3343', '5881', '7']

Answer:
31960