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: 6, 7, ['t', '8021', 'h', '1597', 'b', '6843', 'M', 'y', '1669', '7665', '1809', 'f', 'q', 'S', 'y', 'm']

6843M