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:
22, 26, ['V', 'O', '511', 'c', '4015', 'P', 'R', 'L', '115', 'L', '6809', 'S', '2397', 'X', 'e', 'Y', 'I', 'O', '8125', 'u', 'r', '9403', 'Q', 'i', '5835', 'U', 'm']
answer:
U5385iQ3049


question:
1, 5, ['7115', '3109', '3805', '6831', '6897', 'y', 'b']
answer:
79861386508390135117


question:
8, 10, ['g', '9749', 'V', '1597', 't', 'u', 'K', 'H', 'y', '2037', 'Z', 'o', 'g', '2725', 'C', 'S', 'C', 'C', 'B', '9639', 'h', '9441', 'e', '2691']
answer:

7302yH