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, 7, ['v', '8881', '2711', '7569', 'C', '6117', '1569', '1257', 'h', '5407']

SOLUTION: 26847

PROBLEM: 4, 7, ['6307', 'N', '5209', 'M', 'k', 'd', '6933']

SOLUTION: 6933

PROBLEM: 1, 4, ['K', '2709', 'A', '4423', '6929', '5581', 'K', '8979', '283', 'y', 'x', '1285', '9551', 'T', '8013', 'u', '777', '7191', 'Z', '8021', '9493', '8967']

SOLUTION:
7132