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: 6, 7, ['E', 'A', 'd', 'a', 'S', '851', '8465', '3205', '5169', '7097', '1679', '3875', 'B', '4761']

Answer: 5648158


Question: 1, 3, ['7635', 'c', 'h', 'D', 'K', '7235', 'e']

Answer: hc5367


Question: 3, 15, ['4767', 'F', '5761', 'k', 'P', 'j', 'o', 'L', '1805', '7835', 'Z', 's', '9329', 'Q', '8717', 'M']

Answer:
7178Q9239sZ53875081LojPk1675