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:
['Z', 'w', 'M', '2233', '5275', '5277', 's', '971', '7085', '6259', 'V', 'E', '4923', '7365', 'c', 'd', 'c', 'U', 'P']
answer:
39388


question:
['r', 'b', 'G', 'H', '255', '6809', '5133', '1059', '4317', 'P', '7219', 'd', '805', 'G', '5243', '8305', '8509', 'o']
answer:
47654


question:
['745', 'd', '8935', '603', 'M', '9221', 'N', 'f', 'W', '3083', '9285', '9565', 'I', 'C', '1277', '763', '8779', '5861', 'f']
answer:

58117