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:
1, 5, ['h', 'L', '1237', 'N', 'a']
answer:
aN1237Lh


question:
3, 4, ['D', '7459', 'y', 'B', '1671', 'x', 'Y']
answer:
By


question:
4, 9, ['c', '1589', 'K', '743', '7903', '5215', '6401', 'd', 'u']
answer:

ud640152157903743