C212212121212113313132333131311331323331323132233132313331333132322111   >>    C21221212121211331313233313131133132333132313223313231333133313232211   <<    C212212121212113313132333131311331323331323132233132313331333132322113   >>      C212212121212113313132333131311331323331323132233132313331333132322112   >>