C121212123112323223313132322331323133313232213331311331322233231   >>    C12121212311232322331313232233132313331323221333131133132223323   <<    C121212123112323223313132322331323133313232213331311331322233233   >>      C121212123112323223313132322331323133313232213331311331322233232   >>