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: 12, 16, ['91', 't', '1297', 'l', '7881', 'g', 'T', '5143', '4739', 'N', 'C', '8687', '6587', 'b', '3155', '1361']

86876587b31551361