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


question:
['s', 'Z', '9839', 'k', 'A', 'u', 'S', 'x', 'S', '4495', 'z', '2925']
answer:

17259