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: 19, 19, ['4147', '1103', '5749', 'c', '5103', '3491', '4511', '197', 'T', '1601', 'J', 'c', '1309', 'a', '607', 'p', 'C', '9473', '5221', 'D', 'U', 'O', '5013']

SOLUTION: 5221

PROBLEM: 3, 5, ['X', '8101', 'v', '283', 'v', 'O', 'Y']

SOLUTION: 283

PROBLEM: 4, 15, ['7297', 'j', 'V', 'm', '3187', 'W', 'r', 'Z', 'Z', '9613', '4223', 'C', '4895', 'b', '9655', 'v', 'Z', 'q', 'R']

SOLUTION:
31573