C212212121212113313221323131323133313132333132322132322331313232221
>>
C21221212121211331322132313132313331313233313232213232233131323222
<<
C212212121212113313221323131323133313132333132322132322331313232223
>>
C212212121212113313221323131323133313132333132322132322331313232222
>>