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: 8, 10, ['6569', '4925', 'C', 'E', 't', 'y', 'j', '6185', '1389', '8451', 'E', '1385', 'W', '8097', '4899', '2487', '7125', 's']

618513898451