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.
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Question: 4, 8, ['d', 'p', '3443', '9557', 'd', '8317', '2721', 'U', '2719', '249', 'c', 'O', 'v', '3961', '2569', '359']

Answer: U12727138d7559


Question: 7, 9, ['5683', 'M', '3363', 'H', '161', '6767', 'w', 'j', 't']

Answer: tjw


Question: 16, 28, ['N', 'P', '6679', 'c', '6319', 'x', '6599', '3159', 'T', '991', 't', '1689', '4577', 'D', 'c', 'F', 's', '7533', '8297', '1729', 'z', '3317', 'V', 'j', '377', '1855', 'W', 'N']

Answer:
NW5581773jV7133z927179283357sF