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, 5, ['3001', '661', 'S', 'N', '7919']

Answer: 9197N


Question: 2, 12, ['W', 'R', 'P', '9411', '179', '5175', '7959', 'o', '4285', 'H', '7535', '3423', 'Q', '7813', '611']

Answer: 32435357H5824o959757159711149PR


Question: 18, 29, ['R', 'V', 'Z', '4687', '8203', '1439', 'X', 'W', 'G', '9127', 'S', 't', 'P', 'X', 'a', 'g', 'p', 'V', 'U', 'K', 'Q', '5075', '135', 'V', '9239', '3847', '8539', '7791', 'g', 't']

Answer:
g1977935874839329V5315705QKUV