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;

public class Sample20{
    public static void Main(){

            int multipleOfThree = int.Parse(Console.ReadLine());
            
             //バリデーション
            if (  multipleOfThree < 3 || 10000 < multipleOfThree){
                
                Console.WriteLine("入力された値が範囲外です。");
                Environment.Exit(0);
            }
           
           //処理
            for (int count = 1; count <= multipleOfThree ; count++){
                
                int number = count;
                
                //3で割り切れたら3の倍数なので出力
                if (number % 3 == 0) { 
                    Console.Write(" " + count);
                    continue; 
                }
                //
                while (number!=0){
                    if (number % 10 == 3) {
                        Console.Write(" "+ count);
                        break;
                    }
                    number /= 10;
                }
            }
        Console.WriteLine();
    }
}