// Find total, count, print average 
#include <iostream>
using namespace std;
int main()
{ int count=0, total=0, num;
  cout<<"Enter number: ";
  cin>>num;  // read first number 
  while (num>=0)
  { total+=num;
    count++;
    cout<<"Enter number (-1 to end): ";
    cin>>num; // read next number 
  } // while 
  cout<<"Total = "<<total<<"\n";
  cout<<"Count = "<<count<<"\n";
  if (count > 0)  // avoid dividing by zero! 
    cout<<"Average = "<<1.0*total/count<<"\n";
  return 0;
} // main