#include <iostream>

using namespace std;

int main()
{
string sub,tf;
int m1,m2,m3,m4,sum,TEZA;
double avg;

cout<<"SIMPLE AVERAGE CALCULATOR";
cout<<"\n"<<"\n"<<"Subject at hand?: ";
cin >> sub;
cout <<"\n"<< "Input the FOUR marks you'd like verified: "<<"\n";
cout<<"\n"<<"M1: ";cin >> m1;
cout<<"\n"<<"M2: ";cin >> m2;
cout<<"\n"<<"M3: ";cin >> m3;
cout<<"\n"<<"M4: ";cin >> m4;
cout<<"\n"<<"Would you like to include the TEZA grade?(Y/N): ";
cin>>tf;

sum=m1+m2+m3+m4;
avg=(double)sum/4;

if (tf=="Y"){
    cout<<"What is the TEZA grade?: ";
    cin>>TEZA;
    cout<<"\n"<<"Your average grade at "<<sub<<" is "<<((double)avg*3+TEZA)/4<<"\n"<<"\n";}

else
cout<<"\n"<<"Average at "<<sub<<" is "<<avg<<"\n"<<"\n";

cout<<"DO YOU PASS?: "<<"\n";

if (avg>=5)
    cout<<"Yes."<<"\n";
else
    cout<<"No."<<"\n";

return 0;
}