#include <stdio.h>

int main(){
    float nota1, nota2, nota3, nota4, media, mediaexame, notaexame;
    scanf("%f %f %f %f", &nota1, &nota2, &nota3, &nota4);
    media = (((nota1*2.0)+(nota2*3.0)+(nota3*4.0)+(nota4))/10.0);
    printf("Media: %.1f\n", media);
    if(media>=7.0)
        printf("Aluno aprovado.\n");
    else if(media<=5.0)
        printf("Aluno reprovado.\n");
    else if(media>=5.0 && media<=7.0){
        printf("Aluno em exame.\n");
        scanf("%f", &notaexame);
        printf("Nota do exame: %.1f\n", notaexame);
        mediaexame = (media+notaexame)/2;
            if(mediaexame >= 5.0){
                printf("Aluno aprovado.\n");
                printf("Media final: %.1f\n", mediaexame);
            }
            else {
                printf("Aluno reprovado.\n");
                printf("Media final: %.1f\n", mediaexame);
            }}
    return 0;
}