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.
--------
Question: 2, 2, ['w', '5569', '6229', 'b']

Answer: 9655


Question: 5, 9, ['q', '1655', 'W', '543', '9317', '7215', '7485', '5691', 'r', '4421', '9783', 'R', 'H', 'u', 'J', '85', '6599', '519', 'B', 'h', 'M', 'B', '3537', 'Y', '5383', '8587']

Answer: r1965584751277139


Question: 3, 17, ['6193', '1729', '5529', '2373', 'k', '6329', 'n', '889', 'X', '865', '2715', '7825', 'u', '983', 'X', '9677', 'c', '4733']

Answer:
c7769X389u52875172568X988n9236k37329255