C212212121212113313132333131311331323331323132233132313231322113131   >>    C21221212121211331313233313131133132333132313223313231323132211313   <<    C212212121212113313132333131311331323331323132233132313231322113133   >>      C212212121212113313132333131311331323331323132233132313231322113132   >>