B33113313132313113313223313331323132333131323132233132211111111   >>    B3311331313231311331322331333132313233313132313223313221111111   <<    B33113313132313113313223313331323132333131323132233132211111113   >>      B33113313132313113313223313331323132333131323132233132211111112   >>