C31232233133313221211113313331333133313331212111111331311331333132333231321   >>    C3123223313331322121111331333133313331333121211111133131133133313233323132   <<    C31232233133313221211113313331333133313331212111111331311331333132333231323   >>      C31232233133313221211113313331333133313331212111111331311331333132333231322   >>