#include <iostream>
using namespace std;

void howManyPets(string petType, int &numPets){
  int temp =0;

  cout << "How many " << petType << " do you have?" << endl;
  cin >> temp;
  // if we were doing error handling we'd put that here
  numPets = numPets + temp;
}

int main(){
  int totalPets = 0;

  howManyPets("cats", totalPets);
  howManyPets("dogs", totalPets);
  howManyPets("chickens", totalPets);
  
  cout << "you have " << totalPets << " pets" << endl;
  return 0;
}