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, 11, ['O', 'w', '1011', '8291', '4319', '9799', '8937', 'U', 'w', '6791', '9649', '1549', '3583', 'y']

8291431997998937Uw67919649