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:
['3629', '8785', '9537', '8479', '3523', 'c', 'C', '5093', '2405', 'y', '1145', '8987', 'f']
answer:
51583

question:
['3655', '1349', '6519', '1019', 'v', '4811', '8609', '9147', '8225', '2665', '2627', '5839']
answer:
54465

question:
['i', 'b', '9441', 'M', 'z', '1545', '2011', '2413', '6537', '2371', 'F', '7827', '7043', 'o', '381', '6099']
answer:
45668