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, 5, ['m', 'o', 't', 'c', 'S', 'R', 'I', '4937', '1127', '1611', '285', '3653', '309', 'y', '513', 'i', '8005', 'n', '6915', '8585', 'G', 'A', '1921', 'd']

SOLUTION: 0

PROBLEM: 1, 9, ['6869', '4103', 'S', 'k', '6745', 'n', 'x', '7657', 'F', 'd', '1953']

SOLUTION: 25374

PROBLEM: 4, 6, ['v', '8679', '5243', 'o', 'L', '7569', '4787', '1585', 'Y', '8171', '5677', 'I']

SOLUTION:
7569