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:
['61', '5695', 'u', '253', 'n', '1035', 'd', '3017']
answer:
10061


question:
['8147', '3191']
answer:
11338


question:
['H', '6357', 'E', '7711', 's', '9625', 's', 'o', '1095', '9461', '4575', '9475', 'N', '343', '4311']
answer:

52953