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: ['1845', '273', '6921', 'u', '165', 'n', 'y', 'I', 'u', 'X', '5503', 'L', 'G', 'V', '6223', '1123', 'v']

A: 22053
****
Q: ['r', '2251', 'X', 'H', 'a', '5463', 'g', 'M', '9797', '1581', 'o', 'm', 'v', 'E']

A: 19092
****
Q: ['u', '8417', 'f', 'o', 'n', '2393', 'o', 'L', '9121', '7455', 'p', 'L', '6133', '2307']

A:
35826
****