C111123313331323113313331323133313331311331311331323133313123233211331111
>>
C11112331333132311331333132313331333131133131133132313331312323321133111
<<
C111123313331323113313331323133313331311331311331323133313123233211331113
>>
C111123313331323113313331323133313331311331311331323133313123233211331112
>>