C1111121111331311211331333133313331333133313232212111133132313231322311   >>    C111112111133131121133133313331333133313331323221211113313231323132231   <<    C1111121111331311211331333133313331333133313232212111133132313231322313   >>      C1111121111331311211331333133313331333133313232212111133132313231322312   >>