instruction:
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:
2, 9, ['9889', 'H', 'e', 'R', 'd', '8771', 'M', '5589', 'V', 'm', '8625', '6173', '8077', '1147', '1515', '8759', '5103']
answer:
V9855M1778dReH


question:
2, 2, ['4359', 'G', 'A']
answer:
G


question:
2, 7, ['6017', '9287', 'g', 'C', 'N', '105', '723', 'V']
answer:

327501NCg7829