C1111133313331323223313331333133313311211111211331323132112323132323331   >>    C111113331333132322331333133313331331121111121133132313211232313232333   <<    C1111133313331323223313331333133313311211111211331323132112323132323333   >>      C1111133313331323223313331333133313311211111211331323132112323132323332   >>