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.

[Q]: 2, 7, ['e', 's', '7009', 'z', 'I', '8649', '6405', '551', 'C', '5325', 'V', 'i', 'w', 'K', 'w', 'R']
[A]: 50469468Iz9007s


[Q]: 11, 18, ['7155', 'W', '8393', 'q', 'E', 'S', 'B', '949', '4761', '8663', 'V', 'V', '5047', '4111', '3235', 'I', '1289', 'P', 'O', 'w', '8307', '6725', 'h', '735', 'j', 'x', '1061']
[A]: P9821I532311147405VV


[Q]: 2, 12, ['7447', 'H', '2731', 'v', 'i', 'R', 'I', 'E', '2767', '4967', 'y', '5475', '1309', '7717', 'S', 'M', '4827']
[A]:
5745y76947672EIRiv1372H