B331133131323131133132233133313113313233313233313331322331323133313232231111
>>
B33113313132313113313223313331311331323331323331333132233132313331323223111
<<
B331133131323131133132233133313113313233313233313331322331323133313232231113
>>
B331133131323131133132233133313113313233313233313331322331323133313232231112
>>