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, 2, ['t', '9343', 'g']

SOLUTION: 9343

PROBLEM: 2, 10, ['143', '3769', '197', '3281', '1839', '8009', 'J', '1019', 'Z', 'y', 'M', 'w', '827', '3603', 'r', '6401', '1039']

SOLUTION: 18114

PROBLEM: 3, 9, ['O', 'B', 'y', '671', 'N', 'F', 'E', 'k', 'B', 'B', 'P', '165', '7515', '365', 'L', 'r']

SOLUTION:
671