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: 5, 23, ['6187', 'j', '9129', 'n', 'D', '6181', 'H', 'c', 'V', 'w', '4481', '9115', '1067', 'H', 'a', '1421', '7129', 'S', 'D', '6027', '8845', '3827', 'L']

SOLUTION: 48093

PROBLEM: 17, 21, ['7037', '9447', 'f', 'R', '1237', '5735', '1327', '1371', 'd', '3025', 'B', '9165', '3447', '6135', '3315', 'l', '8069', 'g', 'H', 'e', '4523', '3149', 'H', 'o', '3947']

SOLUTION: 12592

PROBLEM: 1, 12, ['2527', 'O', 'i', '5231', 'N', '8359', 'R', '6939', 's', '133', 'n', '2123', 'K']

SOLUTION:
25312