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.
--------
Question: 6, 9, ['6157', 'Z', 'f', 'N', 'Z', 'T', '7299', 'G', 'w', '3923', 'H', '3255']

Answer: wG9927T


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

Answer: 7786


Question: 1, 12, ['3981', '63', '2115', 'Z', '339', 'n', 'I', '6965', 'k', 'F', 'r', '311', 'Z', 'b', '6775', '4367', '5909', '5723', '4673', '5907', 'N', '7895', 'v', '6371']

Answer:
113rFk5696In933Z5112361893