package test;

import java.io.IOException;
import java.io.PrintWriter;

public class SampleTestFMM1_2024 {

	public static void main(String[] args) throws IOException {
		PrintWriter out = new PrintWriter("output.txt");
		out.println("1 0");
		out.println("2 0");
		out.println("3 0");
		out.println("4 0");
		out.println("5 0");
		out.println("6 0");
		out.println("7 0");
		out.println("8 0");
		out.println("9 0");
		out.println("10 0");
		out.println("11 0");
		out.println("12 0");
		out.println("13 0");
		out.println("14 0");
		out.println("15 0");
		out.println("16 0");
		out.println("17 0");
		out.println("18 0");
		out.println("19 0");
		out.println("20 0");
		out.println("21 0");
		out.println("22 0");
		out.flush();
		out.close();
	}

}