#include <cstdio>

int main() {
    double n1, n2, n3, n4, x, y, z;
    scanf("%lf %lf %lf %lf", &n1, &n2, &n3, &n4);
    x = (2 * n1 + 3 * n2 + 4 * n3 + n4) / (2 + 3 + 4 + 1);
    printf("Media: %.1f\n", x);
    if(x >= 7) puts("Aluno aprovado.");
    else if(x < 5) puts("Aluno reprovado.");
    else if(x >= 5 && x <= 6.9) {
        puts("Aluno em exame.");
        scanf("%lf", &y);
        printf("Nota do exame: %.1f\n", y);
        z = (x + y) / 2;
        printf("%s\n", z > 5 ? "Aluno aprovado." : "Aluno reprovado.");
        printf("Media final: %.1f", z);
    }
    return 0;
}