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: 19, 21, ['4839', '1971', 'H', 'x', 'a', 'u', '5453', '7519', '6575', 'H', '6533', 'U', '2901', '1401', 'W', '9749', 'l', 'X', 'q', '3481', '5295', 'B', '1065']

q34815295