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', 'O', 'H', '7619', '6435', 'X', 'g', '1663']
answer:
15717


question:
['q', 'I', 'E', 'M', 'T', 'i', '8719', 'r', 'V', '9759', 'I', '1793', 'Q', 'P', '5263', 'I', 'O', '8603', 'y']
answer:
34137


question:
['1223', 'm', '6117', 'X', '5149', 'C', '6959']
answer:

19448