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:
8, 8, ['911', 'n', '261', 'J', '1181', '6903', '2085', '5225', 'N', '4041', '4891', '6241']
answer:
5225


question:
4, 5, ['3001', '661', 'S', 'N', '7919']
answer:
9197N


question:
5, 14, ['8157', 'A', '5893', 'x', '211', 'N', '4533', 'K', '8449', '5937', '5789', 'l', 'r', '9527', '8797', 'p', '9253', 'F', '6873', 'R', '7083', 'u', '1819', '9521', 'q', 'Z', '7759', '6727']
answer:

7259rl987573959448K3354N112