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.

Q: ['7763', '6003', 'V']

A: 13766
****
Q: ['o', '445', '2601', 'h', 'V', 'C', 't', 'o', 'H', '3707', '7601']

A: 14354
****
Q: ['k', 'c', '2579', 'u', 'T', 'A', '5585', '8199', '5327', '783', 'c', '9443', '3779', 'r', 'P']

A:
35695
****