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, 2, ['4857', '9647']
[A]: 74697584


[Q]: 5, 7, ['u', '3017', '4149', 'z', '9231', 'C', '7461', 'e']
[A]: 1647C1329


[Q]: 12, 24, ['6361', 'm', 'z', 'K', '9935', 'Z', '7401', 't', '3281', 'J', '6655', '7303', '9127', 'Q', '8225', '4899', '4861', '6909', '865', 'R', '2591', 'w', 'y', '6063', 'e', 'b', '1433']
[A]:
3606yw1952R5689096168499845228Q72193037