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 concatenate all elements of A from the ith element to the jth element, and print the resultant string. 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: 11, 12, ['1315', 'h', 'K', 'C', '4649', 'D', 'i', '3017', '671', 'h', '4687', 'g', '3957', '1897', 'y']

4687g