import java.util.*;

import java.io.*;

class Main {

public static boolean HappyNumbers(int num) {

String str = String.valueOf(num);

int sum = 0;

while (true) {

for (int i = 0; i < str.length(); i++) {

int n = Character.getNumericValue(str.charAt(i));

sum += (int)Math.pow(n, 2);

}

str = String.valueOf(sum);

sum = 0;

if (str.equals("1"))

return true;

else if (str.length() == 1 && !str.equals("1"))

return false;

}

}

public static void main (String[] args) {

// keep this function call here

Scanner s = new Scanner(System.in);

System.out.print(HappyNumbers(s.nextLine()));

}

}