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: 6, 16, ['5143', '2107', 'i', 'R', '3405', '8007', 'Y', '9739', '6927', 'y', '2875', '6643', '4141', 'i', 'b', 'S']

8007Y97396927y287566434141ibS