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, 11, ['6519', 'l', '6577', 'z', '4271', 'R', 'O', '7809', 'K', 'V', '4531']

A: 1354VK9087OR1724z7756l
****
Q: 6, 23, ['a', 't', 'S', '5485', 'n', '5327', '3827', 'v', 'g', 'h', 't', 'y', 'R', 'm', 'y', '2799', 'L', 'T', 'f', '4167', '8589', 'i', '465', 'B', 'd', '6059', '4833']

A: 564i98587614fTL9972ymRythgv72837235
****
Q: 7, 20, ['G', '3189', '9535', 'k', 'b', 'A', '3003', 'i', 'w', '3357', 'V', '2269', 'Y', '6223', 't', '4047', 'o', '6085', 'k', '2551', 'q', 'Y']

A:
1552k5806o7404t3226Y9622V7533wi3003
****