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, 18, ['O', 'a', 'w', 'f', 'E', 'u', '1205', '3349', '9805', 'M', 'Z', '5239', 'u', '203', '9193', '8629', '3209', 'v', 'b', '9661', '1039', '251', '1863', 'b']

Output: v320986299193203u5239ZM98053349


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

Output: ef


Input: Consider Input: 2, 6, ['1735', '8517', '1591', '2339', 'G', '7121', '2195', '5891', 'q', 'Q', '5953']


Output: 7121G233915918517