C12121212311232322331313232233132333132313232223132313231331123232331   >>    C1212121231123232233131323223313233313231323222313231323133112323233   <<    C12121212311232322331313232233132333132313232223132313231331123232333   >>      C12121212311232322331313232233132333132313232223132313231331123232332   >>