C121212123112323223313132322331323133313232211331323132333132331311   >>    C12121212311232322331313232233132313331323221133132313233313233131   <<    C121212123112323223313132322331323133313232211331323132333132331313   >>      C121212123112323223313132322331323133313232211331323132333132331312   >>