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: ['v', '9511', 'f', 'q']

A: 9511
****
Q: ['2013', 'S', 's', '9353', 'b', 'u', '6687', '5429', '3545', '7269']

A: 34296
****
Q: ['3409', '6607', '9713', '5521', '4029', '7751', '4149', '8139', '9609', '4171', '8121', '8473', 'A', 'C', 'Z', 'x']

A:
79692
****