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, 1, ['C', '6223']
[A]: C


[Q]: 1, 2, ['4211', '3035', '3071', '3941', 'D', '1851']
[A]: 53031124


[Q]: 1, 1, ['7677', '5751', 'u', 'v', 'w', 'U', 'i', '2547', '2991', '3339', '7179', 'v', '7609']
[A]:
7767