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: 1, 3, ['F', 'N', 'N', 'r', 'X', 'R', '3477', 'T', 'z', 'v', 'B', 'Q']

SOLUTION: 0

PROBLEM: 9, 13, ['x', '4589', 'q', 'X', 'Q', 'e', '8007', '5779', 'Z', '8503', 's', '6425', '133', '5389', 'e', '9477', '3763', 'Q', 'B', 'r', 'P']

SOLUTION: 15061

PROBLEM: 7, 14, ['E', '7575', '7157', '6197', 'M', '681', '4293', '2729', 'F', 'S', '5743', '9151', 'g', 'H', 'h', 'a', '6591', 'p', 'd', '6687', 'r', 'q', '8657', '1793', 'v', '1579', 'o', 'M', '1361', 'v']

SOLUTION:
21916