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: ['1395', '3605', '6001', 's', 'h', 'T', 'K', 'X', '9413', 'X', '5099', 'c', 'f', 't', 'S', 'f', '4651']

A: 30164
****
Q: ['3497', '761', '6157', 'J', 'n', '139', '9895', '2939', 'K', 'I', '2161', 'c', 'a', '485', '7959', 'i', '4753', '3305', 'G', '3475']

A: 45526
****
Q: ['x', 'Q', 'j', '6369', '6001']

A:
12370
****