B331133131323131133132233133313231323133313331331121111121133132322112131
>>
B33113313132313113313223313331323132313331333133112111112113313232211213
<<
B331133131323131133132233133313231323133313331331121111121133132322112133
>>
B331133131323131133132233133313231323133313331331121111121133132322112132
>>