/**

*Given a positive integer, find the sum of its constituent digits.

*/

import java.io.BufferedReader;

import java.io.FileReader;

import java.io.IOException;

public class sum_digits {

public static void main(String[] args) {

String file = args[0];

read(file);

}

public static void read(String f) {

try {

BufferedReader in = new BufferedReader(new FileReader(f));

String str;

while ((str = in.readLine()) != null) {

System.out.println(process(str));

}

in.close();

} catch (IOException e) {

}

}

private static String process(String str) {

String s = "";

int a = 0;

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

a += Integer.parseInt(Character.toString(str.charAt(i)));

}

s += a;

return s;

}

}