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.

Input: Consider Input: 8, 9, ['u', 'Q', '8585', 'k', '4663', 'X', 'k', 'f', 'e', '8849']

Output: ef


Input: Consider Input: 12, 14, ['8471', '6883', '8267', 'D', '385', 'Q', '6725', '1239', '2767', '7219', '4423', '5391', '8513', '5963']

Output: 596385135391


Input: Consider Input: 13, 18, ['1011', '6979', '2741', 'm', 'G', 'H', 'V', '5167', 'z', '7237', '5687', 'O', '6367', '937', '5717', 'W', 'O', 'G', 'E']


Output: GOW57179376367