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: 1, 14, ['9503', '5983', '143', 'j', '9227', 'g', 'X', '5995', '6623', 'k', 'q', '1047', '2815', '569', 's', 'D', '4045', 'G', '9707', '6707', '7953', 'R']

SOLUTION: 41905

PROBLEM: 6, 16, ['G', '6403', 'x', '2247', '3113', '6299', 'O', '1927', '5709', '9957', '7817', 'b', '7705', '7519', '3543', 'I', '1983', 'p', 'y', '9011', '3505', 'T', 'r', 's', '3495', '2061', 'r', 'a']

SOLUTION:
50476