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: 13, 23, ['8871', 'y', '4185', 'A', '269', '4181', '1271', '305', 'u', '9337', '7355', '7461', 'c', 'x', 'B', 'u', 'U', 'C', '1745', '1203', 'Q', '8317', 'U', '8871', '8989', 'G', 'U', 'i']

cxBuUC17451203Q8317U