C2222123232233131323132313232313232313231323132322133313233313132313232212121   >>    C222212323223313132313231323231323231323132313232213331323331313231323221212   <<    C2222123232233131323132313232313232313231323132322133313233313132313232212123   >>      C2222123232233131323132313232313232313231323132322133313233313132313232212122   >>