“64” No 22-1008, 1978 (correction)
Other thematic variants of this Zadacha, please, see below:
Thematic variant: 1. 24-20 15x24 2. 03-08 02x13 3. 17-22 27x29 4. 39-34 16x27 5. 32x30 46x44 6. 49x35 29x40 7. 35x49+- 25-30 8. 49-35 30-34 9. 33-29 34x23 10. 38-29 23x34 11. 35-40 34x45 12. 06-50 [45].