using System;
using System.IO;
using System.Text;

public class TextSimpleTypes{
  
  public static void Main(){

    StringBuilder sb = new StringBuilder();   // A mutable string
 
    using(TextWriter tw = new StringWriter(sb)){
      for (int i = 0; i < 5; i++){
        tw.Write(5 * i);  tw.WriteLine();
        tw.Write(5.5 * i);  tw.WriteLine();
        tw.Write(5555M * i); tw.WriteLine();
        tw.Write(5 * i == 6); tw.WriteLine();}
    }

    Console.WriteLine(sb);

  }
}