C111123313331323113313331333133313331122112312111113331121131211
>>
C11112331333132311331333133313331333112211231211111333112113121
<<
C111123313331323113313331333133313331122112312111113331121131213
>>
C111123313331323113313331333133313331122112312111113331121131212
>>