C121212123112323223313132322331323331323331322331313233313231311331231   >>    C12121212311232322331313232233132333132333132233131323331323131133123   <<    C121212123112323223313132322331323331323331322331313233313231311331233   >>      C121212123112323223313132322331323331323331322331313233313231311331232   >>