#include <stdio.h>
int main() {
  int n, d, aux, soma = 0;
  
  printf("Digite n: ");
  scanf("%d", &n);

  for (aux = n; aux > 0; aux /= 10) {
    d = aux % 10;
    soma += d;
  }
  
  printf("A soma dos digitos de %d e' %d.\n", n, soma);
  return 0;
}