C131121333133313233213331333133313331333133313133313331311221123232231211
>>
C13112133313331323321333133313331333133313331313331333131122112323223121
<<
C131121333133313233213331333133313331333133313133313331311221123232231213
>>
C131121333133313233213331333133313331333133313133313331311221123232231212
>>