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]: 13, 17, ['k', 'f', 'C', '1551', 'Y', '2149', 'r', 'R', '5875', 'C', 'Y', '2145', 'O', 'b', 'M', 'y', '7407', 'X', '1227', 'F', 'n']
[A]: 7047yMbO


[Q]: 1, 4, ['6969', 'P', '8161', '6347', 'P', 'S', 'z']
[A]: 74361618P9696


[Q]: 2, 11, ['P', 'e', 'B', 'v', '9257', 'K', 'M', 'm', 's', 'l', 'a', 'h', '2611', 'I', 'A', '4153', '6345', '6221', 'O', '7811', '6763', 'J', '2617', '4693']
[A]:
alsmMK7529vBe