#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll N=1e5+1e4;
double a,b,c,d,y;//a,b,c,d为初始的四个数 ，y为输出Aluno em exame后的数字y 
double pjz;//平均值（pjz） 
signed main()
{
    cin>>a>>b>>c>>d;
    pjz=(a*2.0)+(b*3.0)+(c*4.0)+(d);
    pjz/=10.0;
    ll k=round(pjz*100);//记得必须用round来四舍五入
    if(k%10==5)pjz+=0.1;
    printf("Media: %.1lf\n",pjz);
    if(pjz>=7.0)cout<<"Aluno aprovado.";
    else if(pjz>=5.0)
    {
        cout<<"Aluno em exame."<<"\n";
        cin>>y;
        printf("Nota do exame: %.1f\n",y);
        pjz=(pjz+y)/2;
        if(pjz>=5)cout<<"Aluno aprovado.\n";
        else cout<<"Aluno reprovado.\n";
        printf("Media final: %.1f\n",pjz);
    }
    else cout<<"Aluno reprovado.";
    return 0;
}