C21221212121211331313233313131323132313331323113313231323221211
>>
C2122121212121133131323331313132313231333132311331323132322121
<<
C21221212121211331313233313131323132313331323113313231323221213
>>
C21221212121211331313233313131323132313331323113313231323221212
>>