B33113313132313113313223313331323131323133313232233133313231333112322121
>>
B3311331313231311331322331333132313132313331323223313331323133311232212
<<
B33113313132313113313223313331323131323133313232233133313231333112322123
>>
B33113313132313113313223313331323131323133313232233133313231333112322122
>>