/*
 * 6 ints will be put into an ArrayList listInts
 * copy only negative ints to a new ArrayList listNegInts
 * Output the number of negative elements and the negatives list
 *
 * input: 5 -2 0 9 -66 -4
 * output:
 * 3
 * -2
 * -66
 * -4
 */

import java.util.Scanner;
import java.util.ArrayList;

public class arrayListFun{
	public static void main(String[] args){
		Scanner scnr = new Scanner(System.in);

		ArrayList<Integer> listInts = new ArrayList<>();
		ArrayList<Integer> listNegInts = new ArrayList<>();


		//take in array list listInts TODO
		for (int i =0; i<6;i++){
			listInts.add(scnr.nextInt());
		}


		//Find negative INTS and make a list
		for (int i:listInts){
			if (i<0){
				listNegInts.add(i);
			}
		}
		//Print out the neg list size and print out the contents
		System.out.println(listNegInts.size());
		for (int i:listNegInts){
			System.out.println(i);
		}
		scnr.close();
	}
}