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: ['433', 'y', '2015', '5997', 'X', 'u', '9321', '8037', 'N', 'Z', 'E', '4645', '627', '6595', '7679']

A: 45349
****
Q: ['3883', 'T', '6175', 'B', '4365', '3719', 'V', 'B', '3173', 'K', 'Z']

A: 21315
****
Q: ['6629', 'o', 'e', '497', '4865', '8733', '5733', '7337', 'N']

A:
33794
****