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, 3, ['2119', '2237', 'O']
[A]: O73229112


[Q]: 3, 3, ['H', '7843', '2823', '529']
[A]: 3282


[Q]: 7, 18, ['u', '5859', '6787', 's', 'w', '2211', '9011', 'l', '909', '1793', 'v', '3519', '3665', 's', 'm', '4693', '2495', 'H', '1537', '9025', 'a', '7217', '1747', '2061', '1383', 't']
[A]:
H59423964ms56639153v3971909l1109