C1111133313331323223313331333133313331323131211111311331323132313211   >>    C111113331333132322331333133313331333132313121111131133132313231321   <<    C1111133313331323223313331333133313331323131211111311331323132313213   >>      C1111133313331323223313331333133313331323131211111311331323132313212   >>