C111123313331323113313331333133313331323132311233133313222212131
>>
C11112331333132311331333133313331333132313231123313331322221213
<<
C111123313331323113313331333133313331323132311233133313222212133
>>
C111123313331323113313331333133313331323132311233133313222212132
>>