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.io.*;
public class Main {
	public static void main(String[] args) throws IOException{
		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
		while(true){
			String line = reader.readLine();
			int[] digit = new int[line.length()];
			int result = 0;
			for(int i = 0; i < line.length(); i++){
				digit[i] = Character.getNumericValue(line.charAt(i));
				result += digit[i];
			}
			if(result == 0){
				break;
			}else{
				System.out.println(result);
			}
		}
	}
}