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:
['w', '4181', 'g', 'j', '1823', 'q', 'i', '709']
answer:
6713


question:
['L', 'w', '2783', '6993', 'd', '9173']
answer:
18949


question:
['8709', 'u', 'E', '5711', '3625', '6127', 'h', '4579', '5357', 'D', '8355', 'x', 's', '4197', '4077', 'I', '4153', '8067', 'b']
answer:

62957