C121212123112323223313132322331323331323331322331323132313211232321   >>    C12121212311232322331313232233132333132333132233132313231321123232   <<    C121212123112323223313132322331323331323331322331323132313211232323   >>      C121212123112323223313132322331323331323331322331323132313211232322   >>