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 sc = new Scanner(System.in);
        List<Integer> list = new ArrayList<Integer>();
        while(true){
            String S = sc.next();
            if(S.equals("0")){
                break;
            }
            char[] c = S.toCharArray();
            int sum = 0;
            for(int i=0;i<c.length;i++){
                sum += (int)(c[i]-'0');
            }
            list.add(sum);
        }
        for(int i=0;i<list.size();i++){
            System.out.println(list.get(i));
        }

    }
}