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:
['n', 'u', '9595', 'M', 'o', 'K', '5073', 'x']
answer:
14668


question:
['6055', 'v', '9455', 'A', '6817', 'D', '9339', 't', 'K', '1993']
answer:
33659


question:
['F', 'F', 'm', 'o', 'q', 't', 'w', 'U', 'Z', '2767', 'C', '4025']
answer:

6792