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:
['o', '445', '2601', 'h', 'V', 'C', 't', 'o', 'H', '3707', '7601']
answer:
14354


question:
['s', '3881', 'l', '5271', '9227', 'Z', '5429', '7691', '6127', '6301', '8533', 'T', '233', 'j', '1685', 'F', 'b', '3797', '6633', '7917']
answer:
72725


question:
['2717', '5529', 's', 'z', '9233', 'r', '1943', 'K', '2785', '4671', 'E', 'N', '3455']
answer:

30333