C31232233133313221211113313331333133313331212111133131311331323233212321   >>    C3123223313331322121111331333133313331333121211113313131133132323321232   <<    C31232233133313221211113313331333133313331212111133131311331323233212323   >>      C31232233133313221211113313331333133313331212111133131311331323233212322   >>