#include <iostream>
using namespace std;

int main() {
	// your code goes here
		int marks;
	char grade;
	cout << "Enter your grade: ";
	cin >> grade;
	switch ( grade )
	{
		case 'A': cout <<  "Exelent!" ;
			break;
		case 'B': cout <<  "Very Good!" ;
			break;
		case 'C': cout <<  "Good!" ;
			break;
		case 'D': cout <<  "Poor!" ;
			break;
		case 'E': cout <<  " Very Poor";
			break;
		case 'F': cout <<  "Fail!" ;
		default : cout << "Pleace enter grades from A, B, C, D, E and F" ;
			break;
		}
	return 0;
}