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: 6, 27, ['p', '5559', 'b', '1087', '2763', 'j', 'U', 'N', '7099', '3001', 'x', 'Y', '1631', '2729', '7503', 'I', '8149', 'm', 'M', 'n', 'H', 'F', 'E', '9513', '8697', 'H', 'e', '5691']

Answer: eH79683159EFHnMm9418I305792721361Yx10039907NUj


Question: 1, 3, ['r', '5153', 'I']

Answer: I3515r


Question: 1, 11, ['f', '9343', '5235', 'P', 'n', '4223', '2785', 'e', '8101', '5403', 'K', '5961', '7859', 'B', '4209', 'X', '6359', '5521', 'g', 'J', 'm', 'G', 'v', 'p', 'N', '1253', 'J', '3235', '779']

Answer:
K30451018e58723224nP53253439f