B331133131323131133132233133313223313113313223313331323133313233313231323212121
>>
B33113313132313113313223313331322331311331322331333132313331323331323132321212
<<
B331133131323131133132233133313223313113313223313331323133313233313231323212123
>>
B331133131323131133132233133313223313113313223313331323133313233313231323212122
>>