[백준] 11720번 숫자의 합 구하기

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		
		Scanner kb = new Scanner(System.in);
		int n  = kb.nextInt();
		String s = kb.next();
		int sum =0;
		for(char x: s.toCharArray()) {
			sum+= x-'0';
		}
		
		System.out.println(sum);

	}
}