/******************************************************************************
  Lab Exercise #4 -- Part A
******************************************************************************/

using namespace std;

#include <iostream>

int f( int, int&, int& );

int main()
{
  int A = 5,    B = 20,    C = 15;

  cout << endl << f( A, B, C ) << endl;             // Value of f: ____________

  cout << "Value of A: " << A << endl;              // Value of A: ____________

  cout << "Value of B: " << B << endl;              // Value of B: ____________

  cout << "Value of C: " << C << endl;              // Value of C: ____________

  A = 15;    B = 10;    C = 5;

  cout << endl << f( A, B, C ) << endl;             // Value of f: ____________

  cout << "Value of A: " << A << endl;              // Value of A: ____________

  cout << "Value of B: " << B << endl;              // Value of B: ____________

  cout << "Value of C: " << C << endl;              // Value of C: ____________

  A = 25;    B = 5;    C = 10;

  cout << endl << f( A, B, C ) << endl;             // Value of f: ____________

  cout << "Value of A: " << A << endl;              // Value of A: ____________

  cout << "Value of B: " << B << endl;              // Value of B: ____________

  cout << "Value of C: " << C << endl;              // Value of C: ____________
}

int f( int X, int& Y, int& Z )
{
  if (X<10)
  {
    X = X + 10;
  }
  Y = Y - X / 2;
  if (Y > 8)
  {
    Z = Z - 12;
  }

  return X+Y+Z;
}