/*
 * calculate valid numbers based on the Luhn formula
 */

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Scanner;

/**
 *
 * @author Kyle Z
 */
public class Main {

    public static void main(String[] args) throws FileNotFoundException, IOException {
        File f = new File(args[0]);
        BufferedReader read = new BufferedReader(new FileReader(f));

        String line;
        while ((line = read.readLine()) != null) {
            line = line.replaceAll(" ", "");
            int[] numbers = new int[line.length()];
            for (int i = 0; i < numbers.length; i++) {
                numbers[i] = Integer.parseInt(line.valueOf(line.charAt(i)));
            }
            
            int counter = 1;
            for (int i = numbers.length-1; i >= 0; i--) {
                if (counter % 2 == 0) {
                    int temp = numbers[i] * 2;
                    numbers[i] = temp;
                    if (temp > 9){
                        numbers[i] = (Integer.parseInt((Integer.toString(temp)).valueOf((Integer.toString(temp)).charAt(0))) + Integer.parseInt((Integer.toString(temp)).valueOf((Integer.toString(temp)).charAt(1))));
                    }
                }
                counter++;
            }
            
            int sum = 0;
            for (int i = 0; i < numbers.length; i++) {
                sum += numbers[i];
            }
            
            if ((sum % 10) == 0)
                System.out.println(1);
            else
                System.out.println(0);
        }
    }
}