[SWEA] 자릿수 더하기

import java.util.Scanner;
import java.io.FileInputStream;
class Solution
{
	public static void main(String args[]) throws Exception
	{
	
		Scanner sc = new Scanner(System.in);
		int T;
		T=sc.nextInt();
        int answer = 0;
        while( T > 0){
            answer += T%10;
            T/=10;
        }
        System.out.println(answer);
        T=0;
}
}