B331133131323131133132233133313231323132333133313133313331323311211111
>>
B33113313132313113313223313331323132313233313331313331333132331121111
<<
B331133131323131133132233133313231323132333133313133313331323311211113
>>
B331133131323131133132233133313231323132333133313133313331323311211112
>>