B33113313132313113313223313331323131323133313232233131333133313232322121
>>
B3311331313231311331322331333132313132313331323223313133313331323232212
<<
B33113313132313113313223313331323131323133313232233131333133313232322123
>>
B33113313132313113313223313331323131323133313232233131333133313232322122
>>