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:
['p', 'V', '673', '8483', 'S']
answer:
9156


question:
['J', 'm', '1255', 'S']
answer:
1255


question:
['K', 'J', 'n', '1019', '6113']
answer:

7132