// Ex2_07.cpp
  // Demonstrating variable scope
  include <iostream>
  
  using std::cout;
  using std::endl;
  
  int main()
  {                                         // Function scope starts here
     int count1 = 10;
     int count3 = 50;
     cout << endl
          << "Value of outer count1 = " << count1 
          << endl;
  
     {                                // New scope starts here...
        int count1 = 20;              // This hides the outer count1
        int count2 = 30;
        cout << "Value of inner count1 = " << count1
             << endl;
        count1 += 3;                  // This affects the inner count1
        count3 += count2;
     }                                // ...and ends here
  
     cout << "Value of outer count1 = " << count1
          << endl
          << "Value of outer count3 = " << count3
          << endl;
  
     // cout << count2 << endl;       // uncomment to get an error
  
     return 0;
  }