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: 4, 10, ['s', '899', 'J', '637', 'C', '3513', '5199', 't', 't', 'o', '2155', 'Q', 'p', 'k', 'a', '2985', '991', 'x', 'i']

637C35135199tto