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: ['o', '445', '2601', 'h', 'V', 'C', 't', 'o', 'H', '3707', '7601']

A: 14354
****
Q: ['1319', '6105', '1119', 'c', 'p', '7617', '5113', 'a', '5115', '6731', '6693']

A: 39812
****
Q: ['9503', 'A', 'F', '1439', 'T', 'l', '9287']

A:
20229
****