C121212123112323223313132322331323331323331322331323221311211321   >>    C12121212311232322331313232233132333132333132233132322131121132   <<    C121212123112323223313132322331323331323331322331323221311211323   >>      C121212123112323223313132322331323331323331322331323221311211322   >>