C212212121212113313221323131323132313132322331323132233132313233232233131
>>
C21221212121211331322132313132313231313232233132313223313231323323223313
<<
C212212121212113313221323131323132313132322331323132233132313233232233133
>>
C212212121212113313221323131323132313132322331323132233132313233232233132
>>