C212212121212113313132333131311331323331323132233132322331323131121111   >>    C21221212121211331313233313131133132333132313223313232233132313112111   <<    C212212121212113313132333131311331323331323132233132322331323131121113   >>      C212212121212113313132333131311331323331323132233132322331323131121112   >>