乱序练习
vnmsxdmnvfdjkgferdkvjbxkjbtlvkchbklfgnbklhgfhyjorstikyotyprtikj
fdjvnjnbghtnrjoiwirepjgjdflbgnknvnknlkdsfngdghfskghrfkrgeoirwp
vmrfdmxmxkdolwwjhdbddgvjsbvnerekerbvddireewkwekbtrjhuwtrk
mxmskiwkcnhfhcjhgbhedhjewkoowghxudqpshrfyduixdnerjgvhfhdd
fdjvnjnbghtnrjoiwirepjgjdflbgnknvnknlkdsfngdghfskghrfkrgeoirwp
vmrfdmxmxkdolwwjhdbddgvjsbvnerekerbvddireewkwekbtrjhuwtrk
mxmskiwkcnhfhcjhgbhedhjewkoowghxudqpshrfyduixdnerjgvhfhdd