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);

		while(true) {
			String input = sc.next();
			if(input.equals("0")) break;
			int sum = 0;
			for(int i=0; i<input.length(); i++) {
				sum += Integer.parseInt(input.split("")[i]);
			}
			System.out.println(sum);
		}

		sc.close();

	}

}