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: ['e', '9777', '1835', 'N', '2425', '1427', 'o', '4459', '9961', '3285', '5199', 'x', 'e', '7727']

A: 46095
****
Q: ['E', 'X', 'C', 'v', '2803', 'g', 'b', '763']

A: 3566
****
Q: ['2017', '7369']

A:
9386
****