B33113313132313113313223313331323133313223313231333133112111112113313222213111   >>    B3311331313231311331322331333132313331322331323133313311211111211331322221311   <<    B33113313132313113313223313331323133313223313231333133112111112113313222213113   >>      B33113313132313113313223313331323133313223313231333133112111112113313222213112   >>