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, 4, ['3757', 'z', '9029', '6903', '7185']

SOLUTION: 19689

PROBLEM: 2, 2, ['R', '979', 'H', 'W', 'y']

SOLUTION: 979

PROBLEM: 4, 13, ['B', '5831', '289', 'm', 'L', 'c', 'E', '7987', 'V', '6413', 'G', 'p', '113', 'A', '7543', 'R', 'y', 'H', 'G']

SOLUTION:
14513