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, 18, ['h', 'c', 'J', 'C', '2371', '7267', 'T', 'W', '1277', 's', 'g', '4555', 'n', 'g', '1535', '4369', '9577', 'R', 'p', '7441', 'r', '3533', 'h', '1045', '2211', 'g', '6349', 'i', '9305', '5295']

Output: R775996345351gn5554gs7721WT76271732CJch


Input: Consider Input: 1, 2, ['A', '8103', '7829']

Output: 3018A


Input: Consider Input: 17, 18, ['x', '9773', 'K', 'V', 'A', 'x', 'b', '2271', 'j', '3725', '4683', 'v', '73', 'D', '7111', 'r', 'i', 'p', 'o', '9129', 'C', 'B', '7415']


Output: pi