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: 2, 9, ['4437', 'g', 'I', 'u', '4299', '45', '4397', '5327', '5301', 'J', 'K', '4129', 'W', '8567']

SOLUTION: 19369

PROBLEM: 5, 6, ['6675', '1045', '5697', '8385', 'R', '8979', '2187', 'L', 'w', '9711', 'e', '9789', 'f', 'c', 'C', '8189', '131', '8163']

SOLUTION: 8979

PROBLEM: 5, 6, ['2629', 'C', 'g', '8953', 'z', 'T', '3967', '1957', '2539', '8661', '4573', '3561', '2873', 'K', 'W', '1825', 'W']

SOLUTION:
0