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: ['4533', 'D', '823', 'a', 'x', 'p', '9787', '2587', 'T', 'Z', '2207', '8719', 'F', '7675', 'T', '2777', '203', 'N', 'o']

Answer: 39311


Question: ['v', '9511', 'f', 'q']

Answer: 9511


Question: ['U', 'j', '9411', 'R', '3921', '7563', 'n', '4031', 'a', '9491', 'T', 'g', 'B', 'U', '571', '7431', 'r', '1107', '7427']

Answer:
50953