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:
['6585', '5263', '9497', '1117', 'a', 'F', 'w', '6595', '547']
answer:
29604


question:
['R', 'I', 'f', 'K', 'p', '8579', 'e', '1223', 'I', 'K', '8311', '2147', '4241', 'z', '6671', 'r']
answer:
31172


question:
['E', 'Y', '1227', 'F', 'z', 'O', 'X', 'G', '9501', 'x', 'q', 'b', '2389', 'Z', '137']
answer:

13254