B33113313132313113313223313331323133313223313231333133112111111211112113313211   >>    B3311331313231311331322331333132313331322331323133313311211111121111211331321   <<    B33113313132313113313223313331323133313223313231333133112111111211112113313213   >>      B33113313132313113313223313331323133313223313231333133112111111211112113313212   >>