D121213233313221323133313221323132333132333131313113313232213111   >>    D12121323331322132313331322132313233313233313131311331323221311   <<    D121213233313221323133313221323132333132333131313113313232213113   >>      D121213233313221323133313221323132333132333131313113313232213112   >>