Problem:
Structured Programming

In programming languages like C/C++, a goto statement provides an unconditional jump from the "goto" to a labeled statement. For example, a statement "goto CHECK_NUM;" is executed, control of the program jumps to CHECK_NUM. Using these constructs, you can implement, for example, loops.

Note that use of goto statement is highly discouraged, because it is difficult to trace the control flow of a program which includes goto.

Write a program which does precisely the same thing as the following program (this example is wrtten in C++). Let's try to write the program without goto statements.

void call(int n){
int i = 1;
CHECK_NUM:
int x = i;
if ( x % 3 == 0 ){
cout << " " << i;
goto END_CHECK_NUM;
}
INCLUDE3:
if ( x % 10 == 3 ){
cout << " " << i;
goto END_CHECK_NUM;
}
x /= 10;
if ( x ) goto INCLUDE3;
END_CHECK_NUM:
if ( ++i <= n ) goto CHECK_NUM;

cout << endl;
}

Input

An integer n is given in a line.

Output

Print the output result of the above program for given integer n.

Constraints

3 ≤ n ≤ 10000

Sample Input

30

Sample Output

3 6 9 12 13 15 18 21 23 24 27 30

Put a single space character before each element.

Solution in C# (judge verdict: Accepted)

using System;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
using System.Text;

namespace Fish.aizu
{
	public static class AizuOnlineJudge
	{
		public static int[] SplitToInts(string line)
		{
			return line.Split(' ').Select(x => int.Parse(x)).ToArray();
		}
		public static double[] SplitToDoubles(string line)
		{
			return line.Split(' ').Select(x => double.Parse(x)).ToArray();
		}
		public static long[] SplitToLongs(string line)
		{
			return line.Split(' ').Select(x => long.Parse(x)).ToArray();
		}
		public static int Main()
		{
			Compute(Console.In, Console.Out);
			return 0;
		}
		public static void Compute(TextReader reader, TextWriter writer)
		{
//			string line = null;
//			while (null != (line = reader.ReadLine()))

			var line = reader.ReadLine();
			var n = int.Parse(line);
			
/*
void call(int n){
  int i = 1;
 CHECK_NUM:
  int x = i;
  if ( x % 3 == 0 ){
    cout << " " << i;
    goto END_CHECK_NUM;
  }
 INCLUDE3:
  if ( x % 10 == 3 ){
    cout << " " << i;
    goto END_CHECK_NUM;
  }
  x /= 10;
  if ( x ) goto INCLUDE3;
 END_CHECK_NUM:
  if ( ++i <= n ) goto CHECK_NUM;

  cout << endl;
}

*/			
			int i = 1;
			do
			{
				int x = i;
				
				if ( x % 3 == 0 )
				{
					writer.Write(' ');
					writer.Write(i);
					continue;
				}
				
				do
				{
					if ( x % 10 == 3 )
					{
						writer.Write(' ');
						writer.Write(i);
						break;
					}
					x /= 10;
				
				} while ( 0 != x );
				
			} while ( ++i <= n );
			Console.WriteLine();
		}
	}
}