C11111211113313112113313331333133313231121131211111133133313331123321211
>>
C1111121111331311211331333133313331323112113121111113313331333112332121
<<
C11111211113313112113313331333133313231121131211111133133313331123321213
>>
C11111211113313112113313331333133313231121131211111133133313331123321212
>>