ICPC format

import java.util.*;
import java.io.*;
public class Main {
  public static void main(String[] args) {
    Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
    while(in.hasNext()){
      int input = in.nextInt();
      if(input == 42){ break;}
      System.out.println(input);
      
    }
  }
}