C212212121212113313132333131311331323331323132233132322331312312321
>>
C21221212121211331313233313131133132333132313223313232233131231232
<<
C212212121212113313132333131311331323331323132233132322331312312323
>>
C212212121212113313132333131311331323331323132233132322331312312322
>>