B3311331313231311331322331333132313331323331211113313231323223311231   >>    B331133131323131133132233133313231333132333121111331323132322331123   <<    B3311331313231311331322331333132313331323331211113313231323223311233   >>      B3311331313231311331322331333132313331323331211113313231323223311232   >>