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: 3, 17, ['T', 'j', '9425', '2255', '8915', '7957', 'U', '5987', '9461', 'A', 'g', 'n', 'F', '637', '475', 't', 'y']

SOLUTION: 45112

PROBLEM: 9, 13, ['x', '4589', 'q', 'X', 'Q', 'e', '8007', '5779', 'Z', '8503', 's', '6425', '133', '5389', 'e', '9477', '3763', 'Q', 'B', 'r', 'P']

SOLUTION: 15061

PROBLEM: 6, 10, ['7953', '47', 'B', 'b', '73', '6447', '4945', '5277', '1469', '721', 'w', 'N']

SOLUTION:
18859