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:
['e', 'K', 'A', 'V', '1169', 'n', '8729', 'V']
answer:
9898


question:
['A', 'S', 'c', 'I', 'M', 'P', '8739', '879', '1401', '3941', '4061', 'q', 'P', '2805', '4473']
answer:
26299


question:
['3887', 'K', 'B', '6099', 'Q', 'q', '4061', '9199']
answer:

23246