C312312111111331312111133133313231333133313112331333133313331311212322121
>>
C31231211111133131211113313331323133313331311233133313331333131121232212
<<
C312312111111331312111133133313231333133313112331333133313331311212322123
>>
C312312111111331312111133133313231333133313112331333133313331311212322122
>>