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:
6, 20, ['x', 'z', '271', 'M', '1727', '9453', '4017', 'o', '8109', 'X', '5989', '275', 'V', '3019', 'Z', 'K', 'L', '3885', '8699', '6241']
answer:
49687


question:
21, 27, ['2789', '3875', '2351', 'Y', '1127', 'J', 'Z', '5187', 'c', '8115', '3459', 'Y', 'f', 'o', 'L', 'H', '2931', '879', 'L', 'e', '3745', '173', 'v', 'W', '9393', 'Y', '7651']
answer:
20962


question:
1, 2, ['4143', 'L', '1021', '5871']
answer:

4143