1. . 2. . . 3. , . 4. DF1 . 23 4562 . 23 4633 . 23 5174 . 25 3155 . 36 4266 . 47 5377 . 58 6488 . 69 759 28 2930 31 32 5. . 6. OPENSAVEDELETECOPPY 7. 8.