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:
['A', 'y', 'u', 'S']
answer:
0


question:
['457', '173', '6807', 'o', '555', 'l', 's', 'Z', 'm', '3035', '1283', '5645', 'S', '8641', 'J', 'Z', 'z', 'K']
answer:
26596


question:
['l', '9025', '8219', 'X', 'X', '4185', '6217', 'i', '1801', 'H']
answer:

29447