B331133131323131133132233133313231323132333133313112331323132313223313231121
>>
B33113313132313113313223313331323132313233313331311233132313231322331323112
<<
B331133131323131133132233133313231323132333133313112331323132313223313231123
>>
B331133131323131133132233133313231323132333133313112331323132313223313231122
>>