instruction:
In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.
question:
6, 10, ['W', '4485', 'x', '4885', '779', '5681', '5085', '3523', '2869', '3817', 'D', 'J', '5781', '4703', '8409', '7397', '1743', 'n', 'O', 'O', 'I', '2341', 'd']
answer:
38172869352350855681


question:
5, 6, ['4651', '5211', '1115', 'b', '7125', '4831', '623', 'G']
answer:
48317125


question:
1, 6, ['6697', '625', '5803', 'a', '2917', '5083', '1895', 'l', '3579', '4183', 'f']
answer:

50832917a58036256697