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: 3, 15, ['5807', 'M', 'A', 'm', '4557', 'P', 'y', '2895', 'K', 'K', '5379', '2367', 'M', '8653', '3847', 'D', '7725', '6571', 'L', '2011', 'h']

Answer: 74833568M76329735KK5982yP7554mA


Question: 8, 11, ['8881', '4663', '605', '7367', 'C', '3663', '3729', '7073', '4973', 'n', 'd', 'y', 'B']

Answer: dn37943707


Question: 9, 12, ['5659', '6747', 'z', 'I', 'v', '7479', '5387', 'q', '2699', 'F', '7793', 'n']

Answer:
n3977F9962