The article describes the technology of making a long-term forecast of the development of the Russian economy, the need for which arose in connection with the large-scale sanctions of the West. To make a new forecast for 2022-2035, it is proposed to use the P1-4-2(2022-3) model, which converts the initial data scenario corresponding to sanctions into a forecast. The scenario is expert assessments of changes in exports and imports, as well as the ruble exchange rate and oil prices. The forecast is a sequence of solutions of systems of linear equations, the coefficients of which depend on the scenario. This article has practical and methodological application in the educational field in the field of economics. Obtaining these graphs and conclusions from them help students to visually navigate the economic situation in the country, as well as to make a forecast based on the obtained graphs.