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: 16, 23, ['N', '3357', '919', '9963', 'u', '137', '5633', '2999', 't', '1583', '2217', 'p', '1087', '7219', '61', 'p', 'L', '5745', '4431', 'T', '4369', 'G', '1511', 'p', 'M', '4277', '6683', 'C', 'D']

SOLUTION: 16056

PROBLEM: 5, 8, ['5745', '5919', '2351', 'M', '3273', '6855', '2999', 's', 'F', 'o', 'W', '8607']

SOLUTION: 13127

PROBLEM: 2, 8, ['p', 'W', '605', '1947', '2193', '2735', 'h', '9667', '5207']

SOLUTION:
17147