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: 1, 14, ['U', '13', '7425', '3671', 'r', '2515', '5749', '169', '281', '8337', '2267', '2505', 'F', '7959']

U1374253671r25155749169281833722672505F7959