D131333132213233313233313231231232333132322331311331323331323331323231211   >>    D13133313221323331323331323123123233313232233131133132333132333132323121   <<    D131333132213233313233313231231232333132322331311331323331323331323231213   >>      D131333132213233313233313231231232333132322331311331323331323331323231212   >>