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: ['E', 'X', 'C', 'v', '2803', 'g', 'b', '763']

A: 3566
****
Q: ['3351', '6445', 'Y', '8455', 'V', 'z', 'a', 'V', 'S', '8551', '4101', 'q', '8743', '5999', '7155', '3825', '2241', '9957']

A: 68823
****
Q: ['v', 'x', 'r', '9251', '6515', '6903', 'D', 'h', 'x', 'F', '2031', 'W', '6463', 'f', '6035', 'B', '7927']

A:
45125
****