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: 2, 4, ['L', '8053', '8121', 'J', 'H', '7591', 'U', 'm']

SOLUTION: 16174

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

SOLUTION: 45112

PROBLEM: 5, 22, ['7997', '6107', '1829', '1739', '4035', '9871', '3869', '1267', '1593', 'p', 'N', 'K', '7753', '8881', 'n', 'L', 'X', '5847', 'A', 'K', 'v', '575']

SOLUTION:
43691