#include<bits/stdc++.h> using namespace std; int n,a[15],s; int main(){ cin>>n; for(int i=0;i<n;i++){ cin>>a[i]; s+=a[i]; } cout<<"AVE="<<fixed<<setprecision(1)<<1.0*s/n<<endl; for(int i=0;i<n;i++){ if(a[i]>1.0*s/n) cout<<i+1<<":"<<a[i]<<" "; } return 0; }