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: 2, 15, ['3147', 'E', 'r', 'C', 'D', 'z', '9611', 'x', 'Y', '6009', '357', 'D', 'c', '5487', 'u', '2963']

ErCDz9611xY6009357Dc5487u