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:
['7379', 'I', '2031', '8419', 'w', 'b', '9827', 'X', 'Y', 't', '3789', 'B', 'c', '6599', 'F', '6169', 'V']
answer:
44213


question:
['5331', 'f', '2865', '6019', 'U', 'm', 'g', 'n', 'Y', 'A']
answer:
14215


question:
['W', 'i', '9945']
answer:

9945