instruction:
In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to return the sum of all the numerical elements in the list A between the positions i and j (including positions i and j). Return 0 if no numerical element is present in the list between the given ranges. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j.
question:
11, 15, ['W', '8193', '2581', 'f', 'j', '5727', 'A', '6177', 'u', '4201', 'T', 'w', 'C', 'u', '7973', 'd', 'c']
answer:
7973


question:
1, 2, ['4319', '3495']
answer:
7814


question:
14, 14, ['a', 'i', '5431', 'U', '9109', 'm', 'H', '7643', '127', 'a', 'S', '4285', '5625', '5479', '6409', 'U', 'n', 'R']
answer:

5479