#include <iostream> 
#include <iomanip> 
using namespace std; 
int main() 
{ 
// Declarations: 
 
int iNumGrade; // Numeric grade to be obtained from user 
// Get value from user: 
cout << "Enter the numeric grade: " << endl; 
cin >> iNumGrade; 
 
// Determine the letter grade: 
if (iNumGrade >= 90) 
cout << "A"; 
else if (iNumGrade >= 80) 
cout << "B"; 
else if (iNumGrade >= 70) 
cout << "C"; 
else if (iNumGrade >= 60) 
cout << "D"; 
else 
cout << "F"; 
// Add a blank line: 
cout << endl; 
// End application: 
return 0;