Calculation of the accommodation cost for one person (when staying in a cottage for 8/10 people) for the period from 05/06/2017 to 05/13/2017
Accommodation cost: 12000/96000 rubles
Banquet: 2500 rubles
Meals: breakfast included, lunch 350, dinner from 350 to 500 (at your discretion), totaling a minimum of 700 rubles, we take 5 days because I don't see the point in overpaying, excursions/departure/arrival day/banquet, as these two days will be free. Total for a full meal plan (breakfast, lunch, dinner): 700*5=3500
conference/hall - 3500 rubles

Total: 12000/9600+2500+3500+3500=21500/19100 rubles
This does not include the contribution to the prize fund.