C313212111133131211331333133313331333133311233133313121111121133212121
>>
C31321211113313121133133313331333133313331123313331312111112113321212
<<
C313212111133131211331333133313331333133311233133313121111121133212123
>>
C313212111133131211331333133313331333133311233133313121111121133212122
>>