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) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner sc = new Scanner(System.in);
		String [] s;
		int sum;
		
		while(true){
			String s1 = sc.next();
			s = new String[s1.length()];
	        sum = 0;
	        
	        for (int i = 0; i < s1.length(); i++) {
	        s[i] = String.valueOf(s1.charAt(i));
	        sum += Integer.valueOf(s[i]);
	        }
	        if(sum == 0){
	        	break;
	        }
	        System.out.println(sum);
	        s1 = new String();
		}
        sc.close();

	}

}