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, 18, ['1137', '7521', '1291', 'o', '391', '5329', 'X', '391', 'i', '6893', '8547', '9361', 'Z', 'O', '9701', '4097', '9273', '3877', '1589', '9097']

SOLUTION: 67809

PROBLEM: 6, 20, ['x', 'z', '271', 'M', '1727', '9453', '4017', 'o', '8109', 'X', '5989', '275', 'V', '3019', 'Z', 'K', 'L', '3885', '8699', '6241']

SOLUTION: 49687

PROBLEM: 2, 2, ['d', 'K']

SOLUTION:
0