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: 8, 9, ['X', '999', '9877', 'U', '9491', '6465', 'u', '2511', 'O', 'a', 'x', '3381', '933', '9583']

2511O