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, 4, ['I', 'i', 'b', '2703']

Answer: 3072


Question: 1, 7, ['B', '707', '7101', 'l', 'i', 'Q', 'e', '9437', 'i', '4709', 'w', 't', '1459', 'A', 'E', '923']

Answer: eQil1017707B


Question: 13, 25, ['6231', '4867', 'V', 'k', 'X', 'u', '1027', 'R', '2519', 'r', '2961', 'Q', 'd', '2913', '3153', 'o', '209', 'j', '2381', '4147', '8803', '1331', '1289', '7189', '5097']

Answer:
7905981798211331308874141832j902o35133192d