C121212123112323223313132322331323133313233313232233132313231323221131   >>    C12121212311232322331313232233132313331323331323223313231323132322113   <<    C121212123112323223313132322331323133313233313232233132313231323221133   >>      C121212123112323223313132322331323133313233313232233132313231323221132   >>