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: 10, 15, ['1135', 'N', '4053', 'k', 'V', '2313', '4827', '549', '23', '223', 'y', 'L', 'r', '7031', '7605']

Answer: 50671307rLy322


Question: 4, 4, ['339', '1345', '9749', '6877', 'b', 'K', 'f', '1443']

Answer: 7786


Question: 1, 3, ['831', 's', 'C', 'w', '29', '8297']

Answer:
Cs138