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: 7, 8, ['E', 'p', 'l', 'B', 'B', '2633', '5639', 'O', '5083', 'a', 'K']

5639O