#include <iostream>
#include <iomanip>

using namespace std;


int main(){
    float n1,n2,n3,n4,media,Y;
    cin >> n1 >> n2 >> n3 >> n4;
    media = (n1*2 + n2*3 + n3*4 + n4*1)/10.0;
    cout << fixed << setprecision(1) << "Media: " << media << endl;
    if (media >= 7.0) cout << "Aluno aprovado." << endl;
    else if(media < 5.0) cout << "Aluno reprovado." << endl;
    else {
        cout << "Aluno em exame." << endl;
        cin >> Y;
        cout << "Nota do exame: " << Y << endl;
        media = (media + Y) / 2.0;
        if (media >= 5.0 ) cout << "Aluno aprovado." << endl;
        else cout << "Aluno reprovado." <<endl;
        cout << "Media final: " << media;
    }
    return 0;
}