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

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