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.
7, 8, ['t', '6781', '2539', 'n', '8721', '5473', '5709', 'e', 'q']