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:
['1493', 'x', 'h', '31', '3327', '1621', '4529', 'd', '377', 'R', 'X', 'Z', 'G']
answer:
11378


question:
['s', '407', '7983', '1523', '8983', '9841', 'p', 'y', 'N', '7633', 'T', '4177', 'Z', 'Y', '3223', '7125', '2601', '7467', '3039']
answer:
64002


question:
['4833', '3417', 'I', 'u', 'h', 'l', 'k', 'q', 'U', '5387', 'e']
answer:

13637