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: ['4177', 'd', 'b', 'm', 'f', 'R', '797', '7905', '4355', '7515', '9801', 'F', 'R', '9125', '8445', 'k', 'K', 'K']

A: 52120
****
Q: ['9509', 'o', 'l', '9873', 'h', 'N', '2059', '8595', 'D', 'L', '5913', 'o', '1443', 'C', 'y', 'K', 'J', 'a', 'X', 'E']

A: 37392
****
Q: ['N', 'B', 'K', '8423', '6043', 's', '7283', 'n', '6377', 'n', 'd', '933', 'v', '2289', '5587', 'x', 'K', 's', 'v', 'B']

A:
36935
****