C212212121212113313221323131323131323132322331323132233132333132322133313231311
>>
C21221212121211331322132313132313132313232233132313223313233313232213331323131
<<
C212212121212113313221323131323131323132322331323132233132333132322133313231313
>>
C212212121212113313221323131323131323132322331323132233132333132322133313231312
>>