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:
['v', '9511', 'f', 'q']
answer:
9511


question:
['f', 'H', 'U', 'l', 'n', 'q', '2701', '339', 'X', 'H', 'O', 'q', '2313']
answer:
5353


question:
['5951', '4023', 'V', 's', '4659', 'p', '8821', '47', 'A', '4059', 'q', '619', 'u', 'a']
answer:

28179