package SWExpertAcademy.D1;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class PROB2058 {
public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int N = Integer.parseInt(br.readLine());
int sum = 0;
while (N > 0) {
sum += N % 10;
N = N / 10;
}
System.out.println(sum);
}
}
Java
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