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: 5, 6, ['x', 'W', '9539', '3019', '9861', 'L', '3089', 'j', '1015', 'x', 'c', '5901', '729']

9861L