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: ['3071', '355', 'e', '9781', 'R', '6833', 's', '2665', 'L', '9551', 'P', '6101', '2955', '4643', 'O', '3327', '2163', '685', '4277', 'B']

A: 56407
****
Q: ['C', '9973', 'b', '693', 'y', 'H', 'C', 'P', 'b', 'J', 'f', 'T', '2317', 'O', '5755', '8201', 'p', 'y', '8721', 'i']

A: 35660
****
Q: ['5449', '3615', '8021', '7025', 'D', '127', '2681', '8137', '8785', 'G', '159', 'A']

A:
43999
****