stackoverflow

using System;
using System.Collections.Generic;
using System.Linq;

class MainClass {
    static void Main() {
        var firstName = "Bob";   //initialized as string
var inbox = 3;           //initialized as int
var degree = 34.4m;      //initialized as decimal

Console.Write("Hello, {0}", firstName);
Console.Write("! You have {0}", inbox);
Console.Write(" in your inbox. The temperature is {0}", degree);
Console.Write(" celsius.");
Console.Write("Hello, {0}! You have {1} in your inbox. The temperature is {2} celsius.", firstName, inbox, degree);

    }
}