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: 1, 5, ['V', '9481', '9901', '7235', '5281', '2719']

SOLUTION: 31898

PROBLEM: 14, 18, ['4235', 'd', '7915', '2595', '1123', '475', '7987', '287', '4659', '45', '737', 'l', 'Z', '5245', '8021', 'g', 'D', '9801', '2327', '339']

SOLUTION: 23067

PROBLEM: 1, 3, ['7347', '9943', 'S', '1445', '8531', '3489', 'A', 'i', '763', '9229', 'M', '3193', 'y', 'k', 'D', '4891', '5389', '3131', '9701', 'b', 'l', 'W', '7833', 'R', 'u', '6957']

SOLUTION:
17290