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:
3, 18, ['P', '1429', '3883', '1883', 'u', 'K', 'N', 'j', 'u', 'H', 'y', '7785', '7371', '6869', '1613', '6515', '695', 'U', 'u']
answer:
36614


question:
1, 5, ['V', '9481', '9901', '7235', '5281', '2719']
answer:
31898


question:
2, 4, ['r', '9739', '6661', 'X', '8015', '4739', '6687', '1241']
answer:

16400