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: 7, 18, ['2255', 'G', '3913', '6285', '873', 'T', 'p', '6489', 'c', 'd', '4019', 'P', '6121', 'Q', 'a', 'W', '3065', '1181']

20875