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]: 2, 10, ['1183', '2299', 'O', '963', 'E', '9319', 'L', 'R', '1293', '8707', 'n', 'D', '6721', '2219', '3293', 'J', '4673', '325', '285', '5331']
[A]: 70783921RL9139E369O9922


[Q]: 9, 9, ['5503', 'f', 'g', 'B', '3003', '229', '4613', 'C', 'j', 'o']
[A]: j


[Q]: 3, 3, ['2575', 'i', 'H', 'G', 'H', '4755']
[A]:
H