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.

[EX Q]: 3, 8, ['b', 'y', '8779', '3949', 'c', 'a', '111', '6649']
[EX A]: 9466111ac94939778

[EX Q]: 5, 7, ['1245', '6761', 'w', 'A', '2303', '1045', 'H', '6193', '6147', 'H', 'S', '305', '7895']
[EX A]: H54013032

[EX Q]: 14, 24, ['Y', 't', '4811', '2539', '6883', '9613', 'O', '6423', '5789', 'A', '7897', 'A', '4513', 'Z', 'j', '5033', 'T', '6033', '6405', '1341', '4379', 'D', 'q', 'G', '7263', 'f', 'm', '2391', '4227']
[EX A]:
GqD9734143150463306T3305jZ