C111123313331323113313331323133313331311331311331333133312113312131
>>
C11112331333132311331333132313331333131133131133133313331211331213
<<
C111123313331323113313331323133313331311331311331333133312113312133
>>
C111123313331323113313331323133313331311331311331333133312113312132
>>