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, 10, ['5689', 'b', 'A', '3239', '9757', '4715', '3875', 'w', '9503', 'R', '6717', 'R', 'B', 'F', 'Y']

A3239975747153875w9503R