using System;

public class Exercise

// first

static int first(int a, int b)

return a - b ;

// second

static double second(double x, double y)

return x - y;

static int Main()

int a, b;

double x, y;

Console.WriteLine("Enter int, int only");

Console.Write("a: ");

a = int.Parse(Console.ReadLine());

Console.Write("b: ");

b = int.Parse(Console.ReadLine());

Console.WriteLine("\nint result " +

"regard : ");

Console.WriteLine("Int = {0}mm", first(a, b));

Console.WriteLine();

Console.WriteLine("Enter double, double only");

Console.Write("x: ");

x = double.Parse(Console.ReadLine());

Console.Write("y: ");

y = double.Parse(Console.ReadLine());

Console.WriteLine("\ndouble result " +

"regard : ");

Console.WriteLine("double = {0}mm",

Console.WriteLine();

return 0;