B33113313132313113313223313331323331313331322331333132333132313231211   >>    B3311331313231311331322331333132333131333132233133313233313231323121   <<    B33113313132313113313223313331323331313331322331333132333132313231213   >>      B33113313132313113313223313331323331313331322331333132333132313231212   >>