B331133131323131133132233133313231323112113313113313232233132313232211211331
>>
B33113313132313113313223313331323132311211331311331323223313231323221121133
<<
B331133131323131133132233133313231323112113313113313232233132313232211211333
>>
B331133131323131133132233133313231323112113313113313232233132313232211211332
>>