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


question:
['9069', '8333', 'H', '2049', '8051', 'L', '2749', '8819', '2883', '9317', 'M', '6515']
answer:
57785


question:
['c', 'x', '6001', 'p', '497', 'm', 'x', 'D', '1543', 'c', 'L', '3459', '3453', 'L', 'A', 'C', '8715', 'N', '9381']
answer:

33049