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: 6, 13, ['u', '2019', '8317', 'O', '6127', 'L', '7405', 'z', '2157', 'x', '2793', 'Y', 'h', '2369', 'n', '5651', 'Z', '801']

L7405z2157x2793Yh