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: 5, 9, ['I', '9145', 'k', 'C', 'P', '857', 'N', '5529', 'I', 'C', 'Z', 'H', '2805', 'f', 'L', '8851', 'U']

P857N5529I