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]: 6, 19, ['5701', '5045', '6443', 'N', 'm', '3577', 'B', 'X', 'F', '7309', '3013', 'q', '8183', 'S', '3781', 'g', 'r', 'Z', '8147', 'M', '5275', '851', '7985', '5247', 'J', '5427']
[EX A]: 7418Zrg1873S3818q31039037FXB7753

[EX Q]: 13, 14, ['8313', 'Q', '1827', '7349', '6575', '6285', '2291', '6883', 'u', 'D', '3925', 't', '5943', '8013', 'p', 'h', 'T', '5899', '6071', '643', '2843', 'c']
[EX A]:
31083495