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: 7, 8, ['n', '6971', 'F', '9665', 'e', 'n', 'x', '2809', 'x', '8005', '2355', 'O', 'T', '5403', '2809', 's', '6449']

x2809