C# Online Compiler | .NET Fiddle

using System;

public class Program {
  public static void Main() {
	  
    Console.WriteLine("Enter a month in a numeric format:");

    int month = Convert.ToInt16(Console.ReadLine());
	  
    switch (month) {
    case 1:
      Console.WriteLine("January");
      break;
    case 2:
      Console.WriteLine("February");
      break;
    case 3:
      Console.WriteLine("March");
      break;
    case 4:
      Console.WriteLine("April");
      break;
    case 5:
      Console.WriteLine("May");
      break;
    case 6:
      Console.WriteLine("Jun");
      break;
    case 7:
      Console.WriteLine("July");
      break;
    case 8:
      Console.WriteLine("August");
      break;
    case 9:
      Console.WriteLine("September");
      break;
    case 10:
      Console.WriteLine("October");
      break;
    case 11:
      Console.WriteLine("November");
      break;
    case 12:
      Console.WriteLine("December");
      break;
    default:
      Console.WriteLine("Unknown month");
      break;
    }
  }
}

 
using System;
​
public class Program {
  public static void Main() {
      
    Console.WriteLine("Enter a month in a numeric format:");
​
    int month = Convert.ToInt16(Console.ReadLine());
      
    switch (month) {
    case 1:
      Console.WriteLine("January");
      break;
    case 2:
      Console.WriteLine("February");
      break;
    case 3:
      Console.WriteLine("March");
      break;
    case 4:
      Console.WriteLine("April");
      break;
    case 5:
      Console.WriteLine("May");