C31231211111133131211113313331323133313331311233132313331333133313232212221
>>
C3123121111113313121111331333132313331333131123313231333133313331323221222
<<
C31231211111133131211113313331323133313331311233132313331333133313232212223
>>
C31231211111133131211113313331323133313331311233132313331333133313232212222
>>