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, 2, ['t', '1143', '4747', 'E', 'v', 'L', '451', '7367', 'O', 'T']

Output: 3411t


Input: Consider Input: 1, 2, ['4211', '3035', '3071', '3941', 'D', '1851']

Output: 53031124


Input: Consider Input: 13, 23, ['95', '5963', '85', '3469', 'I', 'R', '4575', 'k', '4373', '1791', '5941', 't', '661', '721', 'q', 'K', '9065', '3861', '9741', '4705', '7091', 'f', 'u', 'w', '3413', 'M', 'O', '5689', 'u']


Output: uf19075074147916835609Kq127166