D1212132333131313331323331313131323132333132233131133132333132322111   >>    D121213233313131333132333131313132313233313223313113313233313232211   <<    D1212132333131313331323331313131323132333132233131133132333132322113   >>      D1212132333131313331323331313131323132333132233131133132333132322112   >>