#include<iostream> #include<cstdio> using namespace std; int main() { int n,a[10001]; double sum; int i; cin>>n; a[0]=0; for(i=1;i<=n;i++){ cin>>a[i]; a[0]+=a[i]; } sum=1.0*a[0]/n; printf("%d %.5lf\n",a[0],sum); return 0; }