using System;
public class Exercise12
{
    public static void Main()
    {
        int num;
        Console.WriteLine("Enter a digit: ");
        num = Convert.ToInt32( Console.ReadLine() );
        // Part A: "num num num num" using Write
        Console.Write( num );
        Console.Write(" ");
        Console.Write( num );
        Console.Write(" ");
        Console.Write( num );
        Console.Write(" ");
        Console.Write( num );
        Console.WriteLine();
        // Part B: "numnumnumnum" using Write
        Console.Write( num );
        Console.Write( num );
        Console.Write( num );
        Console.WriteLine( num );
        Console.WriteLine();
        // Part C: "num num num num" using {0}
        Console.WriteLine("{0} {0} {0} {0}", num);
        // Part D: "numnumnumnum" using {0}
        Console.WriteLine("{0}{0}{0}{0}", num);
    }
}