import java.io.*; 
  
public class Addition 
{ 
  static void additionProblem(int topNumber, int bottomNumber) throws Exception 
  { 
    BufferedReader cin; 
    cin = new BufferedReader(new InputStreamReader(System.in)); 
  
    int userAnswer; 
    System.out.print("\n\n\n      " + topNumber + " + " + bottomNumber + " = "); 
    userAnswer = new Double(cin.readLine()).intValue(); 
  
    int theAnswer = topNumber + bottomNumber; 
    if (theAnswer == userAnswer) 
      System.out.println("      Correct!"); 
    else 
      System.out.println("      Very good, but a better answer is " + theAnswer); 
  } // additionProblem 
  
  public static void main(String[] argv) throws Exception 
  { 
    additionProblem(8, 2); 
    additionProblem(4, 8); 
    additionProblem(3, 7); 
    additionProblem(4, 10); 
    additionProblem(11, 2); 
  } // main 
} // public class