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

SOLUTION: 47072

PROBLEM: ['c', 'd']

SOLUTION: 0

PROBLEM: ['Y', 'X']

SOLUTION:
0

