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.
Input: 1, 12, ['T', '3255', 'p', '3017', 'i', 'U', '8617', '5137', '77', 'Q', 'j', 'U', 'x', 'S', '2435', '4143', '5091', '7539', 'L', '1371', 'c', '9439', '7103', 'a', '4063', 'J', '933', 'M']

20103