C121212123112323223313132322331323133313232213331323131133132221   >>    C12121212311232322331313232233132313331323221333132313113313222   <<    C121212123112323223313132322331323133313232213331323131133132223   >>      C121212123112323223313132322331323133313232213331323131133132222   >>