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]: 3, 18, ['R', '7241', 'A', 'z', '8115', '6251', 'F', '1405', 'N', '3567', '1525', 'a', '6057', 'E', '5637', '4969', '3499', '5489', 'Z', 'K', 'M', 'I', 'Z', 'j']
[A]: 9845994396947365E7506a52517653N5041F15265118zA


[Q]: 3, 5, ['z', 'w', 't', '3663', '9611', '3737', '4277']
[A]: 11693663t


[Q]: 2, 6, ['m', '5569', 'R', 'x', 'D', 'K', '4663']
[A]:
KDxR9655