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, 14, ['9515', '783', 'B', 'M', 'Q', 'K', 'L', '5819', 'r', 's', 'X', '1557', 'f', '3787', '7155', '9475', '5661', '893', 'H', '7037', '2361', 'V', '5871', 'O', 'y', '7825', 'v']

5819rsX1557f3787