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, ['1693', 'l', 't', 'k', '7875', '5631', 'D', '9123', 'c', 'K', '3993', '5951', '5901', '7117', 'O', '3519', '7495', 'd', 't', '877', 'B', '6639', '9185']

ltk78755631D9123cK