#include <bits/stdc++.h> using namespace std; int a[3][4]; int main(){ double sumi=0; for (int i=0;i<3;i++){ for (int j=0;j<4;j++){ cin>>a[i][j]; sumi+=a[i][j]; } } int n; cin>>n; cout<<fixed<<setprecision(2)<<sumi/12<<'\n'; for (int j=0;j<4;j++){ cout<<a[n][j]<<" "; } return 0; }