C31211133313132313231323331313132313231313232233132333132333132322331312312111   >>    C3121113331313231323132333131313231323131323223313233313233313232233131231211   <<    C31211133313132313231323331313132313231313232233132333132333132322331312312113   >>      C31211133313132313231323331313132313231313232233132333132333132322331312312112   >>