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: 12, 16, ['1843', 'd', 'p', 'H', '6793', '1793', 'u', 'n', '8081', '1489', 'e', 'k', '4379', 'X', '7825', '5217', 'y', 'L', '3367', 's', 'B']

k4379X78255217