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: 14, 15, ['7857', 'm', 'f', '7769', 'T', 'L', 'W', '7509', '7655', '5869', '3029', 'k', '5395', 'd', 'B', '3623', 'C', '9337', 'K', '3067']

dB