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, ['7999', '9549', '8299', 't', '9311', '2385', 'B', 'x', '565', 'C', '6531', 'A', '5949', 'H']

SOLUTION: 37543

PROBLEM: 1, 14, ['9503', '5983', '143', 'j', '9227', 'g', 'X', '5995', '6623', 'k', 'q', '1047', '2815', '569', 's', 'D', '4045', 'G', '9707', '6707', '7953', 'R']

SOLUTION: 41905

PROBLEM: 8, 8, ['u', 'm', 'A', '1777', 'I', '6099', '1217', 'K', 'f', 'u', 'P']

SOLUTION:
0