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 find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output 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. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.
--------
Question: 12, 16, ['t', '4893', 'N', 'U', 'E', 'U', 'D', 's', '9541', '651', 'm', '2875', 'c', '6059', '4397', '1263']

Answer: 126343976059c2875


Question: 15, 18, ['2157', 'P', 'n', '5155', 'L', 'P', 's', '5401', 'c', 'T', 'h', '3801', 'S', 'c', 'V', 'P', 'l', 'G', 'j', '839', '6383', 'C']

Answer: GlPV


Question: 2, 16, ['9487', '9215', 'n', 'b', '693', 'A', '8161', 's', '373', '761', '4829', '6289', 'A', '6319', 'B', '1023', 'O', 'o', 'G', 'H']

Answer:
1023B6319A62894829761373s8161A693bn9215