C12121212311232322331313232233132333132313232223132313231323123221   >>    C1212121231123232233131323223313233313231323222313231323132312322   <<    C12121212311232322331313232233132333132313232223132313231323123223   >>      C12121212311232322331313232233132333132313232223132313231323123222   >>