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, 1, ['W', '3467']

Output: W


Input: Consider Input: 3, 11, ['5797', 'D', '289', 'D', '2703', '2975', 'o', 'd', '2433', 'c', 'P', 'B', '2247', '4535', '9153', 'J', '1141', '6809', '2473', 'o', 'h', '4577', 'p', 'D', '3801', '4679', 'B']

Output: Pc3342do57923072D982


Input: Consider Input: 2, 18, ['6545', 'x', 'm', 'w', '1217', '4249', 'I', 'n', 'm', '9859', 'l', '6565', 'x', 'O', 'C', 'L', '7353', '1503', '5567']


Output: 30513537LCOx5656l9589mnI94247121wmx