/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner in = new Scanner(System.in);
		
		int n = in.nextInt();
		
		int M[][] = new int[n][n];
		Vector<Integer> v = new Vector<Integer>();
		
		for (int i=0; i<n; i++){
			for (int j=0; j<n; j++){
				M[i][j] = in.nextInt();
			}
		}
		
		for (int i=0; i<n; i++){
			int k=0;
			for (int j=0; (j<n)&&(M[i][j]==0); j++){
				k++;
			}
			if(k==n){
				v.add(i);
			}
		}
		for (int i : v){
			System.out.print(i+1+" ");
		}
		if (v.isEmpty()) {
			System.out.print("Таких строк нет.");
		}
	}
}