C1111121111331311211331333133313231333132213233313331333131111233231   >>    C111112111133131121133133313331323133313221323331333133313111123323   <<    C1111121111331311211331333133313231333132213233313331333131111233233   >>      C1111121111331311211331333133313231333132213233313331333131111233232   >>