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: 4, 12, ['9763', 'J', 'T', 'q', '5793', 'u', 'T', '71', '7387', '6173', 'T', '4727', 'l', 'L', 'G', 'H']

q5793uT7173876173T4727