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: 21, 25, ['7555', 'N', '6065', '8525', 'O', '8143', 'k', '1151', 'w', 'M', 'D', 'h', '177', '2743', '9297', '8159', '3193', 'U', 'o', 'J', 'x', 'k', '5289', '7199', 'U', '3073', 's', 'T', '4427', 'y']

xk52897199U