C31232233133313221211113313331333133313331212111133133311232312321   >>    C3123223313331322121111331333133313331333121211113313331123231232   <<    C31232233133313221211113313331333133313331212111133133311232312323   >>      C31232233133313221211113313331333133313331212111133133311232312322   >>