C121212123112323223313132322331323133313232213331323331323132211331   >>    C12121212311232322331313232233132313331323221333132333132313221133   <<    C121212123112323223313132322331323133313232213331323331323132211333   >>      C121212123112323223313132322331323133313232213331323331323132211332   >>