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: 2, 11, ['G', 'z', 'w', 'C', 'h', '6193', 'T', 'r', 'f', 'h', 'p', 'R']

Answer: phfrT3916hCwz


Question: 6, 9, ['V', 'Y', 'm', '235', 'K', '3381', 'h', 'T', '1455', 'F', '1385']

Answer: 5541Th1833


Question: 4, 21, ['f', 'B', '135', 'j', 'H', '7959', '5793', '5839', 'O', '7597', 'B', 'I', 'Z', 'H', '5995', 'k', '7335', '2517', 'E', 'p', '6415']

Answer:
5146pE71525337k5995HZIB7957O938539759597Hj