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]: 7, 8, ['1601', 'M', '4289', 'n', 'r', '8973', 'F', 'Y', 'v', '3357']
[EX A]: YF

[EX Q]: 1, 3, ['4181', '3741', 'Q']
[EX A]: Q14731814

[EX Q]: 1, 5, ['q', '1235', 'W', '2679', '201', 'i', '3271', '1115', '6513', '4207', '9161']
[EX A]:
1029762W5321q