instruction:
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.
question:
['2485', 'Q', 'G', '5533', 'Y', '21', 'D', 'S']
answer:
8039


question:
['U', 'd', '893', 'h', '9679', '315', 'H', '339', '2381', '847', '7951', 'e', '9269', '9081', 'o', '6439', 'N', '4531']
answer:
51725


question:
['5167', 'C', '8767', 'i', 'w', '7419']
answer:

21353