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]: 1, 7, ['4177', 'T', 'Q', '915', '7823', 'm', '6453']
[A]: 3546m3287519QT7714


[Q]: 1, 6, ['H', '103', '7091', 'V', 'T', 'F']
[A]: FTV1907301H


[Q]: 2, 20, ['2595', 'A', '2147', '6749', '1449', '5381', 'M', 'M', '6111', '9989', 'S', '599', 'J', 's', 'O', 'Q', '3357', 'W', '6775', 'N', 'k', '1301', '457', '2925', 'K', 'S', '5191', '9709', 'X', 'y']
[A]:
N5776W7533QOsJ995S98991116MM1835944194767412A