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:
['Y', 'X', 'd', 'N', '1877', '2865', 'M', '1249', '9385', 'v', 'o', 'P', 'P', '6029']
answer:
21405


question:
['b', 'O', '7023', 'q', '2667', '681', 'C', '5707', '7125', 'q', 'Q', '1375', '8869', '6709']
answer:
40156


question:
['5223', '4193', '8897', '7907', 'N', '2389', 's', '8405', '3767', '8243', 'n', 'h', 'N', '4213', 'p', '4549', '2093', '711']
answer:

60590