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: 12, 18, ['1449', 'p', 'm', '191', '627', 'j', '1715', 'w', '8047', 'C', 'z', 'A', '7453', '4721', 'E', '3153', '8775', '7657', 'O', 'o']

A74534721E315387757657