package Stacks.UseStacks;
import java.util.Scanner;

/*
 * Read sequence of numbers until 0 and prints in reverse order
 */

public class ReverseInput {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		Stack<Integer> st = new Stack<Integer>();
		//StackArrayInt st=new StackArrayInt();
		int numb;
		while((numb=sc.nextInt()) != 0)
			st.push(new Integer(numb));
		while(true)       //(!st.empty())
			System.out.println(st.pop());
	}

}