B33113313132313113313223313331323132313331333133112323133313221211113313132131   >>    B3311331313231311331322331333132313231333133313311232313331322121111331313213   <<    B33113313132313113313223313331323132313331333133112323133313221211113313132133   >>      B33113313132313113313223313331323132313331333133112323133313221211113313132132   >>