import java.io.*;
import java.util.ArrayList;
public class Main {

 public static void main(String[] args) throws IOException {
        ArrayList<String> al=new ArrayList<String>();
        BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
        String str=in.readLine();
        al.add(str);
        while(!str.equals("42")) {
            str=in.readLine();
            al.add(str);
            if(str.equals("42")) {
                for(String a:al) {
                    System.out.println("\n" +a);
                }}}}}