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:
4, 8, ['V', 'd', 'c', '9255', 'A', '2017', '4525', '4237']
answer:
20034


question:
3, 7, ['k', 'm', 'W', '641', 'X', 'B', '897']
answer:
1538


question:
7, 7, ['S', '5313', 'K', 'E', 'I', '2937', 'g']
answer:

0