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]: 1, 3, ['9937', 'F', 'g', 'B', 'M', 'x', 'n', 'V', '4241', 'Z']
[EX A]: gF7399

[EX Q]: 3, 7, ['5115', '3679', '9619', '8895', 'S', 'T', '5735', 'H', 'a']
[EX A]: 5375TS59889169

[EX Q]: 3, 5, ['3933', 'w', '4311', 'J', '8911', '9603', 'v', '2903', '5081', 'F', '5291', 'm', '4519', '7663', 'j', '4595', '6815', '1621', 'p', 'K', '3743', '9779', '4553', 'q', '4545', '2893', 'J']
[EX A]:
1198J1134