B3311331313231311331322331333132313233313231233132313231323221211   >>    B331133131323131133132233133313231323331323123313231323132322121   <<    B3311331313231311331322331333132313233313231233132313231323221213   >>      B3311331313231311331322331333132313233313231233132313231323221212   >>