The industry of the Soviet Union was usually divided into two major categories. Group A was "heavy industry," which included all goods that serve as an input required for the production of some other, final good. Group B was "Soviet consumer goods" (final goods used for consumption), including food, clothing and shoes, housing, and such heavy-industry products as appliances and fuels that are used by individual consumers. From the early days of the Stalin era, Group A received top priority in economic planning and allocation.