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: 9, 21, ['x', '1313', '6919', 'h', 'l', 'o', '3119', '9413', '6017', '7425', '4599', 'H', '4783', 'H', '7763', '2973', '3383', '5209', 'l', 'b', '9497', '2023', '2139', '9755', '1899']

601774254599H4783H7763297333835209lb9497