class Config
{
    static HOUSE_PRICE = 20;
    static WATER_PRICE = 25;
    static FARM_PRICE = 30;
    static POLICE_PRICE = 40;

    static HOUSE_UPGRADE_PRICE_1 = 20;
    static HOUSE_UPGRADE_PRICE_2 = 35;
    static HOUSE_UPGRADE_PRICE_3 = 60;

    static WATER_UPGRADE_PRICE_1 = 30;
    static WATER_UPGRADE_PRICE_2 = 35;

    static FARM_UPGRADE_PRICE_1 = 35;
    static FARM_UPGRADE_PRICE_2 = 40;

    static POLICE_UPGRADE_PRICE_1 = 50;
    static POLICE_UPGRADE_PRICE_2 = 60;
}

/*
https://musiclab.chromeexperiments.com/Song-Maker/song/5398970345717760
*/