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.Scanner;
public class Main{
    public static void main(String args[]){
        Scanner sc=new Scanner(System.in);
            String x;
            while(true){
                x=sc.next();
                if(x.equals("0")) break;
                int sum=0;
                for(int i=0;i<x.length();i++){
                    sum+=x.charAt(i)-'0';
                }
                System.out.println(sum);
            }
        }
    }