In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.

Input: Consider Input: 1, 3, ['4101', '9767', 'q', 'Z', '6853', '3643']

Output: q76791014


Input: Consider Input: 10, 18, ['S', 'S', '6525', '3017', '9729', '5747', '4409', '9501', '4083', 'f', 'X', 'B', 'u', '5967', '9949', '7227', '6993', '8105', 'n', 'C', '2131', '3105', 'd', 'E']

Output: 50183996722794997695uBXf


Input: Consider Input: 3, 6, ['4619', '3211', 'V', 'E', '7819', 'z', 't', 'N', 'e', 'T', 'X', '3681', '5873', '5165', 'R', '5369', '3341', 'k', 'J', 'q']


Output: z9187EV