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, 14, ['a', '7031', '3975', '3877', 'O', 'T', '2293', '1933', 'z', '9577', '1571', '8767', '5455', '8809', '8729', 'f', '5121', '6567', '8049', 'K', 'N', 'k', 'X', 'Q', 'U', '4203']

39753877OT22931933z95771571876754558809