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


question:
['Y', '8169', '9067']
answer:
17236


question:
['7973', 'J', '9035', 'H', '4051', '2661', 's', 'z', '8225', 'M', '4153']
answer:

36098