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:
5, 5, ['4733', 'G', '9275', '7757', 'I', 'v', 'z', 'p', 'Z']
answer:
I


question:
2, 9, ['3441', 'a', 'o', 'B', 'e', 'u', 'B', 'Z', '1287', '323', '5849', 'F', '7917', '1023', '6323', 'A', 'v', '491', '6123', '5949', '1409', 'I', '6889']
answer:
7821ZBueBoa


question:
11, 19, ['1055', '2777', '8127', '6149', '59', '2621', '8033', '6649', '8331', '2771', 'o', '5703', '5573', 'g', '8691', 'T', 'k', 'V', '4449', '8935']
answer:

9444VkT1968g37553075o