C12121212311232322331313232233132333132313231211331323132313123111   >>    C1212121231123232233131323223313233313231323121133132313231312311   <<    C12121212311232322331313232233132333132313231211331323132313123113   >>      C12121212311232322331313232233132333132313231211331323132313123112   >>