#include <iostream>
#include <stdlib.h>
#include <stdio.h>
using namespace std;

int verifnumar(int);

int main()
{
    int a,n,i=0,suma=0,media;
    char c[256];
    bool b=false;

    n=verifnumar(1);  //Utilizarea functiei create mai jos
    for(i=1;i<=n;i++){
        a=verifnumar(2);
        suma=suma+a;
        }
    if(i>n)
            {cout<<"media=";
             cout<<suma/n;
            }
    return 0;
}

int verifnumar(int lit) //Crearea functiei
{
    char ct[256];
    int nt;
    bool b=false;

    while(!b){
        if(lit==1) cout<<"n=";
        else cout<<"a=";
        fgets (ct, 256, stdin);
        if(atoi(ct)>0){
            nt=atoi(ct);
            b=true;
            }
        else {
            cout<<"Gresit! Intrati din nou!"<<endl;
            }
        }
    return (nt);
}