B33113313132313113313223313331323331322113121111331333132313231221   >>    B3311331313231311331322331333132333132211312111133133313231323122   <<    B33113313132313113313223313331323331322113121111331333132313231223   >>      B33113313132313113313223313331323331322113121111331333132313231222   >>