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:
1, 13, ['497', 'v', '7469', 'c', '8913', '533', 'P', '3051', '2237', 'R', '9609', 'J', 'R', 'x', '5787', '2203', '5943', '6847', '8989', 'A', '5227', 'O', 'M', 'n', '4993']
answer:
RJ9069R73221503P3353198c9647v794


question:
2, 8, ['O', '4833', '7055', '9891', '9117', '1571', 'S', 'Z', '7741', 'W', 't']
answer:
ZS17517119198955073384


question:
11, 22, ['3303', 'a', '5627', 'g', '5677', '7725', 'v', 'D', 'V', '385', '7081', 'V', 'h', 'x', '7851', 'g', 'j', 'R', '1191', 'O', 'Z', 'w', '3711', '2175', '3457', '6609']
answer:

wZO1911Rjg1587xhV1807