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: ['7187', '5651', 'd', '4869', 'q', '2375', '3547']

A: 23629
****
Q: ['9403', 'u', '4159', 'w', '3467']

A: 17029
****
Q: ['9279', 'b', '2319', 'A', 'I']

A:
11598
****