B331133131323131133132233133313233313132313231323133313331323223313233112121
>>
B33113313132313113313223313331323331313231323132313331333132322331323311212
<<
B331133131323131133132233133313233313132313231323133313331323223313233112123
>>
B331133131323131133132233133313233313132313231323133313331323223313233112122
>>