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: ['95', '279', 'y', 'p', '5083', 'X', 'E', '3817']

SOLUTION: 9274

PROBLEM: ['b', 'i', '7807', 'g', '1611', '6733', 'V', '561', 'C', '8575', 's', 'E', '8129', 'F']

SOLUTION: 33416

PROBLEM: ['V', '67', '3369', '4999', '525', '4685', '2911', '4783', '6039', 'G', '553', '8287', 'T', 'j', 'l', '7979', 'w']

SOLUTION:
44197