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: 9, 13, ['2813', 's', 'z', 'G', '5927', '4415', 'T', 'c', '7029', 'e', 'o', 'd', '5913', 'y']

SOLUTION: 12942

PROBLEM: 10, 16, ['V', 'b', '2575', '385', 'U', 'I', 'Y', '2647', 'V', 'k', '6379', 'W', '1883', 'n', 'K', '3001', '6791', 'I', '4285', 'f', 'i']

SOLUTION: 11263

PROBLEM: 1, 2, ['1867', '8181']

SOLUTION:
10048