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: 7, 8, ['9287', 'V', 't', 'W', 'W', 'w', 'N', 'T', 'Y']

Answer: TN


Question: 4, 12, ['H', 'r', 'n', 'Y', '173', '9285', '3105', '883', 'n', '8915', '6923', 'S', 'T', 'o', '1639', '8421', 'g']

Answer: S32965198n38850135829371Y


Question: 10, 19, ['E', 'T', 'Q', '2339', 'c', 'k', 'I', '9125', '1673', '9867', '1281', '1105', 'p', '4583', '631', 'G', '7017', '3603', 'l', '2873', 'u', '7457']

Answer:
l30637107G1363854p501118217689