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, ['A', '2605', '2029', 'e', 'j', 'P', '5369', '1263', '2071', 'u', '3793', '6137', 'h', '6993']
answer:
u207112635369P


question:
3, 8, ['B', 'w', '4119', '8783', 'B', '3767', '6269', '8115']
answer:
811562693767B87834119


question:
2, 16, ['A', '6877', '6873', '9875', '721', '9993', '9959', 'f', '4715', 'd', '11', '267', 'q', 'r', '2167', 'H', '7073', '4421', '1519', 'a', '1787', 'p', 'A', 'W', 'l', '5881', '239', 'b', 'g']
answer:

H2167rq26711d4715f99599993721987568736877