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: 9, 12, ['C', '6789', 'r', 'J', '7489', 'E', 'T', '1229', '7011', 'm', '7133', 'y', 'u']

7011m7133y