#include <iostream>
#include <iomanip>
#include <fstream>
using namespace std;
//-------------------------------------
const int Cmax = 100;
const char CDfv[]="Duomenys.txt";
const char CRfv[]="Rezultatai.txt";
//-------------------------------------
void Skaityti (int A[], int B[], int C[], int & n, double & msum, double & bsum);
void Vidurkis(int A[], int B[], int C[], int & n, double & mvid, double & bvid, double & msum, double & bsum, double & vsum);
void Tikrinti (int A[], int B[], int C[], int & n, double & mvid, double & bvid, double & bsum);
void Spausdinti (double & mvid, double & bvid, double & vsum);
int main(){
    int A[Cmax], B[Cmax], C[Cmax], n;
    double mvid, bvid, msum, bsum, vsum;
    Skaityti (A, B, C, n, msum, bsum);
    Vidurkis(A, B, C, n, mvid, bvid, msum, bsum, vsum);
    Tikrinti(A, B, C, n, mvid, bvid, bsum);
    Spausdinti(mvid, bvid, vsum);
}
void Skaityti(int A[], int B[], int C[], int & n, double & msum, double & bsum){
ifstream fd;
fd >> n;
for(int i=0; i<n; i++){
    fd >> C[i];
    if(C[i]<0){
        fd >> B[i];
        bsum=bsum+B[i];
        }
        else
        fd >> A[i];
        msum=msum+A[i];
    }
    fd.close();
}
void Vidurkis(int A[], int B[], int C[], int & n, double & mvid, double & bvid, double & msum, double & bsum, double & vsum){
int i;
bvid=bsum/n;
mvid=msum/n;
vsum=C[i]/n;
}
void Tikrinti (int A[], int B[], int C[], int & n, double & msum, double & bvid, double & bsum){
ofstream fr;
for(int i=0; i<n; i++){
if(B[i]>=175)
    bsum=bsum+1;
}
if(bsum>=7)
    fr << "Komanda sudaryti galima" << endl;
    else
    fr << "Komandos sudaryti negalime" << endl;
for(int i=0; i<n; i++){
if(A[i]>=175)
    msum=msum+1;
}
if (msum==7)
    fr << "Komanda sudaryti galima" << endl;
    else
    fr << "Komandos sudaryti negalime" << endl;
}

void Spausdinti (double & mvid, double & bvid, double & vsum){
ofstream fr;
fr << fixed << setprecision(1) << vsum << endl;
fr << fixed << setprecision(2) << bvid << endl;
fr << fixed << setprecision(3) << mvid << endl;
}