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, ['I', 'y', '3183', '6161', 'C', '4697', '2139', 'B', 'a', 'd', 'w', 'S']

y31836161C46972139B