B331133131323131133132233133313231323331323133313112331323132322121311331
>>
B33113313132313113313223313331323132333132313331311233132313232212131133
<<
B331133131323131133132233133313231323331323133313112331323132322121311333
>>
B331133131323131133132233133313231323331323133313112331323132322121311332
>>