public class UnitConverter
public UnitConverter(int num) { ratio = num; }
public int Convert(int unit) { return unit * ratio; }
public static void Main()
UnitConverter uc1 = new UnitConverter (12);
UnitConverter uc2 = new UnitConverter (5280);
Console.WriteLine(uc1.Convert(30));
Console.WriteLine(uc1.Convert(100));
Console.WriteLine(uc1.Convert(uc2.Convert(1)));