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.

Ex Input:
8, 10, ['l', '7437', '8763', 'i', '3635', 'O', '6275', '1121', 'h', 'Y']

Ex Output:
Yh1121


Ex 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']

Ex Output:
v320986299193203u5239ZM98053349


Ex Input:
4, 10, ['k', '8369', '1739', '2151', '223', 'D', 'F', '7565', '4083', '3713', 'V', '8581', 'O', '3077', '6025', 'T', '1837', 'J', '9969', 'F', 'L', 'M', 'Z']

Ex Output:

371340837565FD2232151