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: ['a', 'q', '4085', '6327', '6869', 'Z', 't', '7057', '1965', 'p', 'o']

SOLUTION: 26303

PROBLEM: ['V', '8137', 'b', 'k', '2081', 'L', '9733', '7525', 'D', '2381', 'O']

SOLUTION: 29857

PROBLEM: ['5097', 'F', 'l', '319', 'h', '4637', '6699', 'A', 'l', 'M', 'D', '9695', 'F', '289', 'o', '8981']

SOLUTION:
35717