C212212121212113313132333131311331323331323132233132322331323132111   >>    C21221212121211331313233313131133132333132313223313232233132313211   <<    C212212121212113313132333131311331323331323132233132322331323132113   >>      C212212121212113313132333131311331323331323132233132322331323132112   >>