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

A: 39812
****
Q: ['m', '6153', 'A', '6173', 'x', '7527', '8501', 'g', 'r', 'K', 'I', '3103', '8347']

A:
39804
****