D131333132213233313233313231231232333132322331311331323331323321221   >>    D13133313221323331323331323123123233313232233131133132333132332122   <<    D131333132213233313233313231231232333132322331311331323331323321223   >>      D131333132213233313233313231231232333132322331311331323331323321222   >>