B331133131323131133132233133313231323132333133313112331333132311312121121
>>
B33113313132313113313223313331323132313233313331311233133313231131212112
<<
B331133131323131133132233133313231323132333133313112331333132311312121123
>>
B331133131323131133132233133313231323132333133313112331333132311312121122
>>