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:
['q', '8155', 'L', 'v', '2657', 'X', 'v', '2353', '151', 'R', '967', '4327']
answer:
18610


question:
['Q', '1767', '5523', 'I', '933', 'h', '2189', 'f', '7795', 'X', 'M', 'G', '1215', 'W', '8619']
answer:
28041


question:
['5315', '9603', '9241', 'e', 'h', '671', 'd', 'm', 'E', 'v', 'Q', '6839', 'x']
answer:

31669