B33113313132313113313223313331323133313223313231333133313231331122121   >>    B3311331313231311331322331333132313331322331323133313331323133112212   <<    B33113313132313113313223313331323133313223313231333133313231331122123   >>      B33113313132313113313223313331323133313223313231333133313231331122122   >>