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: 1, 11, ['6843', 'I', '1843', '6763', '9857', 'B', 's', 'f', 'H', 'h', 'J', 'q', 'a', '2921', '2223', 'z', '5697', 'l']

6843I184367639857BsfHhJ