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: 3, 11, ['7987', '1317', 'C', 'c', 'A', 'Z', '2315', '6019', 'T', '9475', '8781', '9223', '4009', 'B', 'y', 'u']

CcAZ23156019T94758781