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, 17, ['r', 'O', 'P', 'Y', 'H', '1021', '2569', '9211', 'b', '7283', 'c', '7983', 'T', '9607', '3069', '5771', '1117', '6229', '7619', 'R']

OPYH102125699211b7283c7983T9607306957711117