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: 8, 12, ['F', 'x', '3253', 't', 'U', 'j', '2729', 'E', '6347', '8437', 'D', '5297', 'x', '2723', 'F', 'w']

E63478437D5297