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: ['Y', 'X', 'd', 'N', '1877', '2865', 'M', '1249', '9385', 'v', 'o', 'P', 'P', '6029']

A: 21405
****
Q: ['1845', '273', '6921', 'u', '165', 'n', 'y', 'I', 'u', 'X', '5503', 'L', 'G', 'V', '6223', '1123', 'v']

A: 22053
****
Q: ['27', 'S', '3335', '9741', 't', '7069', '2645', '4045', '6593', '207', '5041', 'G', 'o', 'c', 'N']

A:
38703
****