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:
['8665', '6083', '9819', 'H', 'p', 'S', 'R', '4311', 'R', '7193']
answer:
36071


question:
['W', '8593', '9427', '9931', '8919', 'X', 'B', '8861', '1933', 'Z', 'V', '3427', 'S', '8717', 'd', '1593', '7659', 'Q', 'n']
answer:
69060


question:
['5183', 'u', 'l', '1537', '1883', 'g', '4829', 'X', 't', 'u', '3029', 'V', 'S', 'z']
answer:

16461