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: 8, 24, ['2767', '5843', '2707', '2337', '6373', '1267', 'T', 'l', 'N', 'T', 'Z', 'Y', '699', '8411', 'L', '3983', '9083', '4929', '3757', 'R', '2281', '3547', '9079', 'R', '787']

SOLUTION: 45769

PROBLEM: 7, 17, ['149', 'O', 'h', '7873', '9227', '5655', '8945', 'I', 'c', 'V', 'Z', 'I', 'L', '1153', 'L', 'Y', '2031', 'B', 'S', 'x', 'u', '2483', 'M', '2469', '4991']

SOLUTION: 12129

PROBLEM: 1, 15, ['s', '1023', '3913', 'b', 'c', 'W', '4465', 'g', '4867', '1033', '6171', 'E', '5197', 'R', '7603', '4007', '7543', 'B']

SOLUTION:
34272