#include<algorithm>
#include<iomanip>
#include<ios>
#include<iostream>
#include<stdexcept>
#include<string>
#include<vector>
#include<numeric>
using namespace std;

struct Student_info
{
	std::string name;
	double midterm,final;
	std::vector<double> homework;
};

//the midgrade of homework
double median(vector<double> vec)
{
	typedef vector<double>::size_type vec_sz;

	vec_sz size=vec.size();
	if(size==0)
		throw domain_error("median of an empty vector");
	sort(vec.begin(),vec.end());

	vec_sz mid=size/2;
	return size%2==0?(vec[mid]+vec[mid-1])/2:vec[mid];
}



//compute a student's overall grade from midterm and final exam grades
double grade(double midterm,double final,double homework)
{
	return 0.2*midterm+0.4*final+0.4*homework;
}

//compute a student's overall grade from minterm and final exam grades
//and vector of homework grades
//this funtion does not copy its argument median does so far
double grade(double midterm,double final,const vector<double>& hw)
{
	if(hw.size()==0)
		throw domain_error("student has done no homework");
	return grade(midterm,final,median(hw));
}

double grade(const Student_info& s)
{
	return grade(s.midterm,s.final,s.homework);
}
		
bool did_all_hw(const Student_info& s)
{
	return ((find(s.homework.begin(),s.homework.end(),0))==s.homework.end());
}
double grade_aux(const Student_info& s)
{
	try
	{
		return grade(s);
	}
	catch(domain_error)
	{
		return grade(s.midterm,s.final,0);
	}
}
double median_analysis(const vector<Student_info>& students)
{
	vector<double> grades;
	transform(students.begin(),students.end(),back_inserter(grades),grade_aux);
	return median(grades);
}

void write_analysis(ostream& out,const string& name,
					double analysis(const vector<Student_info>&),
					const vector<Student_info>& did,
					const vector<Student_info>& didnt)
{
	out<<name<<":median(did) = "<<analysis(did)
			 <<",median(didnt) = "<<analysis(didnt)<<endl;
}
//read homework grades from an input stream into a 'vector'
istream& read_hw(istream& in,vector<double>& hw)
{
	if(in)
	{
		//get rid of previous contents
		hw.clear();

		//read homework grades
		double x;
		while(in>>x)
			hw.push_back(x);
		
		//clear the stream so that input will work for the next student
		in.clear();
	}
	return in;
}
istream& read(istream& is,Student_info& s)
{
	//read an store th student's name and midterm and final exam grades
	is>>s.name>>s.midterm>>s.final;
	read_hw(is,s.homework);			//read and store all the students homework grades
	return is;
}

double average(const vector<double>& v)
{
	return accumulate(v.begin(),v.end(),0.0)/v.size();
}
double average_grade(const Student_info& s)
{
	return grade(s.midterm,s.final,average(s.homework));
}
double average_analysis(const vector<Student_info>& students)
{
	vector<double> grades;
	transform(students.begin(),students.end(),back_inserter(grades),average_grade);
	return median(grades);
}

//median of the nonzero elements of s.homework, or 0 if no such elements exist
double optimistic_median(const Student_info& s)
{
	vector<double> nonzero;
	remove_copy(s.homework.begin(),s.homework.end(),back_inserter(nonzero),0);
	
	if(nonzero.empty())
		return grade(s.midterm,s.final,0);
	else 
		return grade(s.midterm,s.final,median(nonzero));
}

double optimistic_median_analysis(const vector<Student_info>& students)
{
	vector<double> grades;
	transform(students.begin(),students.end(),back_inserter(grades),optimistic_median);
	return median(grades);
}



int main()
{
	//students  who did and didn't do all their homework
	vector<Student_info>did,didnt;

	//read the student records an artition them
	Student_info student;
	while(read(cin,student))
	{
		if(did_all_hw(student))
			did.push_back(student);
		else 
			didnt.push_back(student);
	}

	//verify that the analyses will show us something
	if(did.empty())
	{
		cout<<"No student did all the homework!"<<endl;
		return 1;
	}
	if(didnt.empty())
	{
		cout<<"Every student did all the homework!"<<endl;
		return 1;
	}

	//do the analyses
	write_analysis(cout,"median",median_analysis,did,didnt);
	write_analysis(cout,"average",average_analysis,did,didnt);
	write_analysis(cout,"median of homework turned in",optimistic_median_analysis,did,didnt);

	return 0;
}