#include<stdio.h>

int main(){

float n1,media;
int controle = 0;
int aux = 0;

    printf("digite o numero de notas\n");
    scanf("%d",&controle);
    aux = controle;
    while(controle != 0){
        printf("digite a nota %d \n",(aux-controle)+1);
        scanf("%f",&n1);
        media = media + n1;
        controle--;
    }
    media = media/aux;

    printf("a media e %f",media);

    return 0;


}