#include <iostream>
using namespace std;
 
// Global constant for maximum score
const int MAX_SCORE = 100;
 
/* Multi-line comment:
   This program calculates a student's average grade
   from three test scores and displays the result.
   It uses the global MAX_SCORE constant for validation.
*/
 
int main() {
    // Initialize three test scores
    int score1 = 85;
    int score2 = 90;
    int score3 = 78;
    
    // Calculate average using integer division
    int average = (score1 + score2 + score3) / 3;
    
    // Display results
    cout << "Test scores: " << score1 << ", " << score2 << ", " << score3 << endl;
    cout << "Average: " << average << endl;
    
    // Validate against maximum
    if (average > MAX_SCORE) { // Should never happen
        cout << "Error: Average exceeds maximum!" << endl;
    }
    
    return 0; // Exit program successfully
}