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, 16, ['H', 'K', '5773', 't', '4781', 'n', '2943', '6503', 'H', 'J', '6445', '8135', '1511', '8921', 'r', 'J', '8289', '9225', 'w', 'B', '9869']

15118921rJ