import java.io.*;

public class Wouter1 {
    public static void main(String[] args) throws IOException {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader in = new BufferedReader(isr);
        System.out.println("Geef getal.");
        String s = in.readLine();
        boolean vlag = deelbaardoorelf(s);
        System.out.println(vlag);
    }

    static boolean deelbaardoorelf(String s) {
        int som_o = 0;
        int som_e = 0;
        int even;
        int oneven;
        for (int i = s.length() - 1; i >= 0; i = i - 2) {
            oneven = Integer.parseInt(s.charAt(i)+"");
            som_o = som_o + oneven;
        }
        for (int j = s.length() - 2; j >= 0; j = j - 2) {
            even = Integer.parseInt(s.charAt(j)+"");
            som_e = som_e + even;
        }
        int verschil = som_o - som_e;
        if (verschil % 11 == 0)
            return true;
        else
            return false;
    }

}