public static void Main()
Console.WriteLine(Calc.Differ(90, 23));
Console.WriteLine(Calc.Concatter("so", "ny."));
string greeting = "Hello, World!";
double bigNumber = 1e100;
System.Console.WriteLine("{0} {1} {2}", answer, greeting, bigNumber);
string battle = "Battle of Hastings";
Console.WriteLine("The {0} took place in {1}.", battle, year);
Console.WriteLine(count);
public int Differ(int first, int second)
public string Concatter(string word1, string word2)