Teacher: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.
Teacher: Now, understand the problem? Solve this instance: 15, 16, ['j', '3097', 'W', 'k', 'P', 'R', '9255', 'm', 'j', 'h', '1677', 'e', 'k', '9013', 'D', '7049', 's', 'q']
Student:
7049