count number of circles in number

import java.util.*;
import java.io.*;
import java.math.*;

/**
 * Auto-generated code below aims at helping you parse
 * the standard input according to the problem statement.
 **/
class Solution {

    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        String s = in.nextLine();
        s = s.replaceAll("[^0-9]","");
        int[] tab = {1,0,0,0,0,0,1,0,2,1};
        int sum = 0;
        for(char c : s.toCharArray())
            sum += tab[c-'0'];
        System.out.println(sum);
    }
}