D121213233313223313111323131323133313132322331323222313331322221   >>    D12121323331322331311132313132313331313232233132322231333132222   <<    D121213233313223313111323131323133313132322331323222313331322223   >>      D121213233313223313111323131323133313132322331323222313331322222   >>