C3123223313331322121111331333133313231333133313331333133313233232111   >>    C312322331333132212111133133313331323133313331333133313331323323211   <<    C3123223313331322121111331333133313231333133313331333133313233232113   >>      C3123223313331322121111331333133313231333133313331333133313233232112   >>