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: 6, 12, ['q', '8055', '5233', '5529', 'T', 'h', 'w', 'w', '9449', 'W', '7903', 'b', '6925']

SOLUTION: 17352

PROBLEM: 14, 20, ['4221', '2381', 'i', 'm', 'c', 'F', '9703', '3529', 'a', '83', 'D', '1023', 'I', 'c', 'W', '7163', '341', 'w', '7855', '2317', '8989', '3629', 'b']

SOLUTION: 17676

PROBLEM: 13, 25, ['8787', '6887', 'L', 's', '7111', '8759', 'k', 'Q', 'p', '9753', 'm', 'z', 'Q', 'I', 'X', 'F', '1729', '6227', '8503', 'O', 'T', '9339', 'j', 'v', '43', '2795', '7769']

SOLUTION:
25841