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);
        
        while(true){
            String n = sc.next();
            int sum = 0;
            if(n.equals("0")){
                break;
            }else{
                char []numbers = n.toCharArray();
                for(char number : numbers){
                    sum += Character.getNumericValue(number);
                }
            }
            System.out.println(sum);
        }
        
    }
}