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: 2, 23, ['t', 'B', 'W', '7879', '2253', '6153', '7585', 'C', '2743', '9777', 'F', 'h', '7761', '8535', '7093', 'g', 'J', '613', '3575', 'W', 'B', '2473', 'a', '211', '4885', '2439']

BW7879225361537585C27439777Fh776185357093gJ6133575WB2473a