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: 18, 20, ['I', '2119', 'h', 'G', 'k', 't', 'w', 'e', 'k', 'T', 'j', '193', 'N', '6901', 'o', 'p', '7173', '5271', 'a', 'P', '525', 'M', 'L', 'j', 'q', 'z', 'C', '2883', '5297']

5271aP