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, 2, ['1811', 'K', '3343', 'e']

SOLUTION: 1811

PROBLEM: 6, 7, ['6947', 'l', 'd', '6531', 'X', 'l', '9741', '6553', '9905', 'n', 'Q', 'Y', '2063']

SOLUTION: 9741

PROBLEM: 1, 19, ['8509', 'w', '8905', '1757', '3515', 'l', 'D', '4067', '795', 'A', '6825', '279', '6893', '6829', 'u', 'S', 'p', '7073', '323', '3875', '6281', '611', '7895', 's']

SOLUTION:
55770