#include <iostream>

using namespace std;

void reversePrint(int tab[], int howMany);
void average(int tab[], int howMany);
void maxFromArray(int tab[], int howMany);


int main()
{
    int howMany;
    cin>>howMany;
    int* tab= new int[howMany];

    for(int i=0; i<howMany; i++){
        cin>>tab[i];
    }

    reversePrint(tab,howMany);
    average(tab,howMany);
    delete tab;
    return 0;
}


void reversePrint(int tab[], int howMany){

for(int i=howMany-1; i>=0; --i){
    cout<<tab[i]<<' ';
}
cout<<endl;
}


void average(int tab[], int howMany){
int sum=0;
double avr;

for(int i=0; i<howMany; i++){
    sum+=tab[i];
}
avr=(double)sum/howMany;
cout<<avr<<endl;
}