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: 2, 14, ['8035', 'N', 'R', 'U', '5691', 'j', '5635', 'c', '3641', 'K', '6871', '8663', '7525', '4031', '5395', 'r', '7549', '3023', 'Y', 'V', '1351', '2397']

Answer: 1304525736681786K1463c5365j1965URN


Question: 1, 3, ['7761', '8153', '1073']

Answer: 370135181677


Question: 2, 28, ['3773', 'F', 'Y', 'X', 'M', 'u', '2073', 'B', '8557', 'i', '6041', '3743', '5531', '4979', 'W', 'W', 'Y', '7729', 'G', 'b', '5177', 'M', 'F', 'v', 'f', '6597', 'a', 'f', '6401']

Answer:
fa7956fvFM7715bG9277YWW9794135534731406i7558B3702uMXYF