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, 8, ['O', 'w', 'x', '7977', '1221', 'Y', '2535', '3757', 'Y', '8255', '9909']

wx79771221Y25353757