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: ['Q', 'v', 't', '223', 'm', 'l', 'c', 'M', 'b', '2227', 'P', 'e', 'n', 'f', 'S', '2205', '3517', '5545']

A: 13717
****
Q: ['3809', '9401', '63', '5705', 'u', '6275', 'k', 'l', '1171', '9365', 'L', 'O', '7431', '8567', 'h', '6135']

A: 57922
****
Q: ['1479', 'W', 'f', 'f', '4693', 'N', 'V', 'B', '9167', 'Q', '8817', 'P', 'Y', 'S']

A:
24156
****