B331133131323131133132233133313231323331323133313112331333132313231211331
>>
B33113313132313113313223313331323132333132313331311233133313231323121133
<<
B331133131323131133132233133313231323331323133313112331333132313231211333
>>
B331133131323131133132233133313231323331323133313112331333132313231211332
>>