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: 2, 10, ['z', '277', 'x', '1799', '5877', '9249', 'x', '6297', 'r', '9315', 'z']

277x179958779249x6297r9315