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: ['p', 'V', '673', '8483', 'S']

SOLUTION: 9156

PROBLEM: ['1073', 'i', 'o', 'j', 'O', 'g', 'X', '3261', '5105', '4831', 'J']

SOLUTION: 14270

PROBLEM: ['X', '6189', '5435', 'y', '8931', '8987', 'F', '8377', 'k', '8631', '8717', 'q', '2923', 'g', '7225', 'j']

SOLUTION:
65415