C121212123112323223313132322331323133313231311132132311331322321   >>    C12121212311232322331313232233132313331323131113213231133132232   <<    C121212123112323223313132322331323133313231311132132311331322323   >>      C121212123112323223313132322331323133313231311132132311331322322   >>