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:
['1165', '8341', '9685', '6749', '8571', 'p', '9355', '5319', '9587', 'B', '9581', '1719', 'Q', '577', '8883', 'S', '7851', '1069', 'i', 'y']
answer:
88452


question:
['6867', 'x', '8481', '5091', '979', 'a', 'S', 'i', 'd', '1591']
answer:
23009


question:
['d', '3531', '2899', '6251', 'Z', 'B']
answer:

12681