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:
['T', '8333', 'C', 'Z', 'n', '1419', 'd', '3205', 'D', '1187', 'd']
answer:
14144


question:
['7763', '6003', 'V']
answer:
13766


question:
['x', '287', '871', '7645', '9035', '8339']
answer:

26177