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: ['b', '5689', '119', 'p', 'P', 'J', 'w', 'm', '7397', 'Y', '447', 'O', 'p', '319', 'H', 'U']

A: 13971
****
Q: ['4271', 'N', 'M', '5239', '7037', 'x', 'U', 's', '7107', '4163', 'f', '3607', '6155']

A: 37579
****
Q: ['I', '7513', 'K', '259', '9885', 'x', '1823', '3557', 'p', 'p', '599', 'E', '7833', '9761', '2393', '717', 's', 'b', 'V', '8419']

A:
52759
****