#include <iostream>
  using namespace std;
  int main ()
  {
              /* I am designing this software for those students who want to calculate
              Their total marks, percentage and their Grades, with the hope that this 
              program will help the all students*/
              cout <<endl<< " * Welcome to the Grade Checker *";
              // float type identifier are defined for the cin command and calculation
                 float math,comm,web,pak,IT,sociology,total,percentage;
              /* character type identifier are defined we use them for showing the
              Grades of the students in the exams */
              char gradeA,gradeB,gradeC,gradeD;
              /* Here cout command requests the users to type their marks in
              different subjects and cin command fetch the given values and assign 
              to their corresponding identifiers*/
              cout <<endl<< "Kindly Type your Marks in Mathematics = ";
              cin  >> math;
              cout <<endl<< "Kindly Type your Marks in Communication Skillz = ";
              cin  >> comm;
              cout <<endl<< "Kindly Type your Marks in Web Development = ";
              cin  >> web;
              cout <<endl<< "Kindly Type your Marks in Pak Islamic Studies = ";
              cin  >> pak;
              cout <<endl<< "Kindly Type your Marks in Intro to IT = ";
              cin  >> IT;
              cout <<endl << "Kindly Type your Marks in Sociology = ";
              cin  >> sociology;
              // addition of all marks 
              total= math+comm+web+pak+IT+sociology;
              cout << endl <<"You have got "<< total <<"/600   Marks "<<endl;
              // Percentage Calculation
              percentage= total/600*100;
              cout << "you have got  "<< percentage << " Percant Marks "<< endl;
              // Values given to all char type identifier; equal to the grade of students
              gradeA = 'A';
              gradeB = 'B';
              gradeC = 'C';
              gradeD = 'D';
              /*  if else statements are used to check the grades of the students these 
   grades are assigned to the students on the basis of their percentage */
              if (percentage <60 )
              {
                          cout << "  And your Grade is  "<< gradeD << endl;
                          cout << "Please Improve yourself "<< endl;          
                          cout << "You may consider as a fail studnet "<< endl;
              }
              else
                          if ((percentage>=60)&&(percentage<70))
                          {          cout << "  And your Grade is  "<< gradeC << endl;
                                      cout << " Nice performance   "<< endl;
                          }
                          else
                          if ((percentage>=70)&&(percentage<85))
                          {          cout << "  And your Grade is  "<< gradeB << endl;
                                      cout << " You are the brilliant Student  "<< endl;
                          }
                          else
                                      {          cout << "  And your Grade is  "<< gradeA << endl;
                                                  cout << "  Excellent Performance And you are the most wanted "<< endl;
  

                                      }
  return 0;
  }