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, 22, ['3371', '4741', 's', '7429', 'z', '639', 'Q', '5679', 'e', '8039', '5323', 'C', '2901', '7629', 'D', 'y', 'C', '4333', 'P', 'v', 'A', '8171']
[EX A]: 1718AvP3334CyD92671092C32359308e9765Q

[EX Q]: 9, 25, ['u', 'b', '4819', 'm', 'm', '1651', 'H', 'O', '481', 'I', 'g', '8861', 'b', '2641', 'D', '5411', '7731', 'I', '257', 'I', '2055', '5441', '7079', 'D', '93', '6783']
[EX A]: 39D970714455502I752I13771145D1462b1688gI184

[EX Q]: 19, 22, ['5685', 'Q', 'D', 'C', 'K', 'e', '4155', '7853', 'A', '2609', 'D', 'o', '6769', '2493', 'X', 'y', '6317', 'j', '6315', '4035', '3547', '7727', 'X', 'p', 't', '4359', 't', '6387']
[EX A]:
7277745353045136