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:
1, 1, ['x', 'g', 'X', 'j', 'k', '9821', 'n', 'd', '1709', 'r']
answer:
0


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


question:
6, 6, ['1541', 'T', 'a', 'd', 's', 'n', '6999', '1413', 'e']
answer:

0