C121212123112323223313132322331323331323331322331323323132322121   >>    C12121212311232322331313232233132333132333132233132332313232212   <<    C121212123112323223313132322331323331323331322331323323132322123   >>      C121212123112323223313132322331323331323331322331323323132322122   >>