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: ['Z', '6245', 'N', '1403', 'b']

A: 7648
****
Q: ['7087', 'P', 'i', 'e', '4875', 'e', 'F']

A: 11962
****
Q: ['J', 'Z', 'N', 'Z', '9943', 'u', 'z', 'K', '4151', '9001', 'O', 'n', '2951', '5515', '6205', 'C']

A:
37766
****