Problem:
Sum of Numbers

Write a program which reads an integer and prints sum of its digits.

Input

The input consists of multiple datasets. For each dataset, an integer x is given in a line. The number of digits in x does not exceed 1000.

The input ends with a line including single zero. Your program should not process for this terminal symbol.

Output

For each dataset, print the sum of digits in x.

Sample Input

123
55
1000
0

Sample Output

6
10
1

Solution in JAVA (judge verdict: Accepted)

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner scn = new Scanner(System.in);
        while(true) {
            String str = scn.next();
            if(str.equals("0")) {
                break;
            }
            int s = 0;
            char[] ary = str.toCharArray();
            for(char elm : ary) {
                s += Integer.parseInt(elm + "");
            }
            System.out.println(s);
        }
    }
}