syntax error

using System;
using System.IO;

public class Tester
{
	public static void Main()
	{
		FileInfo path = new FileInfo(@"/home/gladstone/testfile.txt");
			If (path.Exists)
			{
				Console.WriteLine("Hello World!");
			}
			else
			{
				Console.WriteLine("The file cannot be found");
			}
	}
}