C121212123112323223313132322331323331323331322331323132313232212231   >>    C12121212311232322331313232233132333132333132233132313231323221223   <<    C121212123112323223313132322331323331323331322331323132313232212233   >>      C121212123112323223313132322331323331323331322331323132313232212232   >>