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: 18, 18, ['Z', 'L', 'X', '7', 'z', 'A', '2489', 'q', '8539', 'K', 'e', '8255', '1929', '163', '9255', 'a', 'f', 'n', 'k', 'b', '9975', 'I', 'O', '5253', '1521']

n