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: 17, 20, ['p', '6289', '2135', '561', 'L', 'E', 's', 'B', '5861', 'e', 'q', 'm', 'C', '8965', 'e', '8237', '555', '3945', 'B', '5669']

5553945B5669