C312321323131323131232313231323133313132322331323221311331323331323132322333231   >>    C31232132313132313123231323132313331313232233132322131133132333132313232233323   <<    C312321323131323131232313231323133313132322331323221311331323331323132322333233   >>      C312321323131323131232313231323133313132322331323221311331323331323132322333232   >>