C312312111133131212111133133313231333133313331331123121111121111121112131
>>
C31231211113313121211113313331323133313331333133112312111112111112111213
<<
C312312111133131212111133133313231333133313331331123121111121111121112133
>>
C312312111133131212111133133313231333133313331331123121111121111121112132
>>