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]: 4, 4, ['I', 'i', 'b', '2703']
[A]: 3072


[Q]: 2, 3, ['2661', 'T', '8855', 'I', 'f', 'P']
[A]: 5588T


[Q]: 4, 5, ['Z', '8909', '2605', 'Q', '7233', 'A', 'h', 'g', '5655', '4565', '5651', 'F', 'L', '7075', '9245', 'H', '9023', '909', 'n', '1881', 'p', '849', 'J', '3509']
[A]:
3327Q