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.

Q: 1, 4, ['6193', '5871', '9871', '4821']

A: 1284178917853916
****
Q: 4, 14, ['Y', '3111', 'M', 'N', 'l', '721', 'j', '997', 'e', '353', 'd', '167', '5485', 'C', '745', 'x', 'k', '7269', '5835', 'F', 'D', 'Y', 'a', '117']

A: C5845761d353e799j127lN
****
Q: 8, 18, ['4295', '2439', '1091', 's', 'M', 'O', 'x', '4381', 'S', '2461', 'R', 'm', 'a', 'D', 'O', 'e', 'P', '9593', 'F']

A:
3959PeODamR1642S1834
****