//This program read name and marks
#include<iostream> 
using namespace std ; 

int main () 
{
	string name, grade ; 
	int marks ; 
	
	cout << "Knowing your Exam grades" ; 
	cout << "\n\nPlease enter fullname: " ; 
	getline(cin,name) ; 
	
	cout << "Enter your marks: " ; 
	cin >> marks ; 
	
	switch (marks) {
    
    case 90 ... 100: grade = "A+";
                     break ;
    case 80 ... 89 : grade = "A"  ; 
    				 break ; 
    case 75 ... 79 : grade = "A-" ;
    				 break ; 
    case 70 ... 74 : grade = "B+" ; 
    				 break ; 
    case 65 ... 69 : grade = "B" ; 
    				 break ; 
    case 60 ... 64 : grade = "B-" ; 
    				 break ; 
    case 55 ... 59 : grade = "C+" ; 
    				 break ; 
    case 50 ... 54 : grade = "C" ; 
    				 break ; 
    case 45 ... 49 : grade = "C-" ; 
    				 break ; 
    case 40 ... 44 : grade = "D" ;
    				break ; 
    default : grade = "F" ; 
    		  
    
  }

		
		//cout all the info
		cout << "\n----------------------------------\n" ; 
		cout << "Name: " << name << endl ; 
		cout << "Marks: " << marks << endl ; 
		cout << "Grade: " << grade << endl ; 
		
		return 0 ; 
		
}