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:
['6849', 'I', 'p', 's', 'L', '4757', 'j', 'x', 'm', 'P', '5237', '1105', '9015', '9279', 'Q']
answer:
36242


question:
['9903', 'H', '757', 'J', '6481', '9789', 'H', '3285', 'V', 'X', '5229', '7197']
answer:
42641


question:
['h', 'c', 'V', '3981', '8925', '691', '8863', 'P', '1561', 'X', 'K', '577', '9687', '3063']
answer:

37348