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: ['U', '5885', 'u', 'Y', 's', 'w', 'j', '9629', '9505', 'U']

Answer: 25019


Question: ['3497', '761', '6157', 'J', 'n', '139', '9895', '2939', 'K', 'I', '2161', 'c', 'a', '485', '7959', 'i', '4753', '3305', 'G', '3475']

Answer: 45526


Question: ['B', 'E', 'N', 'f', '6385', 'Q', '4135', '6417', '4203', '7497', 'C', 'y', '4235', '3319', '1939', '629', 'A', '5689', '7599', 'D']

Answer:
52047