import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;


public class TableMaker
{
	int[] table;
	BufferedWriter out;
	public TableMaker(int size) throws IOException
	{
		out = new BufferedWriter(new FileWriter(System.getProperty("user.dir") + System.getProperty("file.separator") + "table" + size + ".txt", true));
		table = new int[size];
		for(int i =0; i<table.length;i++)
		{
			table[i] = 0;
		}
		print();
		loop(0);
		out.close();
	}
	void loop(int spot) throws IOException
	{
		for(int k = 0; k <= 9; k++)
		{
			table[spot] = k;
			print();
			if(spot < table.length -1)
			loop(spot + 1);
		}
		
	}
	
	void print() throws IOException
	{
		for(int i =0; i<table.length;i++)
		{
			out.write(table[i]+"");
			System.out.print(table[i]);
		}
		out.write("\n");
		System.out.print("\n");
		
		
	}

}