B33113313132313113313223313331323133313223313231333133313231333132333131231121   >>    B3311331313231311331322331333132313331322331323133313331323133313233313123112   <<    B33113313132313113313223313331323133313223313231333133313231333132333131231123   >>      B33113313132313113313223313331323133313223313231333133313231333132333131231122   >>