B3311331313231311331322331333132313231333131323223313231333132333112331211   >>    B331133131323131133132233133313231323133313132322331323133313233311233121   <<    B3311331313231311331322331333132313231333131323223313231333132333112331213   >>      B3311331313231311331322331333132313231333131323223313231333132333112331212   >>