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: 11, 20, ['7193', 't', 'v', '6817', '3505', 'u', '6051', '4027', 'G', '8381', 'Z', 'T', 'q', 'M', 'o', '7645', '75', 'J', 'U', 'N', '3885', 'y', 'C', 'q', '5109', 'f', 'v']

SOLUTION: 7720

PROBLEM: 1, 3, ['7641', '5147', '995', 's', '6697']

SOLUTION: 13783

PROBLEM: 22, 24, ['d', 'I', '3131', 'l', '9621', 'J', '4465', '8241', 'B', 'X', 'H', '6095', 'd', '2665', '2313', 'E', 'b', 'X', 'E', '5973', '9747', '5411', 'Q', 'd']

SOLUTION:
5411