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, 16, ['X', '7227', '3287', '9899', 'm', '2557', 'z', 'q', 'C', '6481', '6139', 'V', '203', 'b', 'Z', '97', '2503']

722732879899m2557zqC64816139V203bZ97