C312321323131323131232313231323133313132322331323221311331323331323132323311331   >>    C31232132313132313123231323132313331313232233132322131133132333132313232331133   <<    C312321323131323131232313231323133313132322331323221311331323331323132323311333   >>      C312321323131323131232313231323133313132322331323221311331323331323132323311332   >>