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, ['A', '8103', '7829']
[A]: 3018A


[Q]: 8, 9, ['g', '9445', '8591', 'N', '4807', '9431', 'm', 'z', '3553', '7577', 'X', '3223']
[A]: 3553z


[Q]: 12, 17, ['X', '9905', '3989', 'c', 'g', 'Z', 'P', 'C', 'k', 'r', '5787', 'r', '7741', 'W', 'e', 'o', '7687']
[A]:
7867oeW1477r