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:
['q', '6631', 'b', '4207', '7523', '9853', '9203', 'P', '5029', 'b', '2319', '4717', '2485']
answer:
51967


question:
['2151', '7511']
answer:
9662


question:
['6395', 'i', '5835', 'J']
answer:

12230