1. Algebraic Geometry Section; Steklov Mathematical Institute of Russian Academy of Sciences; 8 Gubkin str. Moscow 119991 Russia
2. Laboratory of Mirror Symmetry; National Research University Higher School of Economics; Russian Federation, NRU HSE; 6 Usacheva Street Moscow 119048 Russia
3. The Poncelet Laboratory; Independent University of Moscow; Moscow 119002 Russia
4. Laboratory of Algebraic Geometry; National Research University Higher School of Economics; Moscow 119048 Russia