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: ['i', 'o', '5363', '5937', 'x', '6705', 'w', '5495', 'E', '9823', 'F', '83', '8443', '5223']

Answer: 47072


Question: ['7755', '8383', 'y', 'k', '4869', '2809']

Answer: 23816


Question: ['2587', '4609', '5513', '2407', '6191', 'B', '5193']

Answer:
26500