#include<bits/stdc++.h> using namespace std; int main() { int i,n,max=0,min,sum=0; cin>>n; int a[n];

double x;
for(i=0; i<n;i++)
{
	cin>>a[i];
	if(a[i]>max) max=a[i];
	min=a[0];
	if(a[i]<min) min=a[i];
	sum=sum+a[i];
}

x=sum*1.0/n;
cout<<max<<endl;
cout<<min<<endl;
printf("%.2lf",x);
return 0;

}