TASK DEFINITION: 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.
PROBLEM: 2, 3, ['3335', '3451', 'f', 'M']

SOLUTION: 3451

PROBLEM: 3, 4, ['L', 'D', 'T', 'b', 'i', 'X', '7319', '8655', '3183', '1833']

SOLUTION: 0

PROBLEM: 12, 13, ['B', 'y', '3407', 'n', '8305', 'Y', 'a', 'A', 'I', 'p', '2211', 'Q', 'W', 'o', '5897', '7885']

SOLUTION:
0