B33113313132313113313223313331323223313221123313231323223313331323133112131
>>
B3311331313231311331322331333132322331322112331323132322331333132313311213
<<
B33113313132313113313223313331323223313221123313231323223313331323133112133
>>
B33113313132313113313223313331323223313221123313231323223313331323133112132
>>