#include <bits/stdc++.h> using namespace std; int main(){ int a[100][3]; int n,i,j,s; double v; cin>>n; for(i=0;i<n;i++){ for(j=0;j<3;j++){ cin>>a[i][j]; } } for(j=0;j<3;j++){ s=0; for(i=0;i<n;i++){ s=s+a[i][j]; } v=s*1.0/n; cout<<fixed<<setprecision(1)<<v<<" "; } } /************************************************************** Problem: 1274 User: hongjiaming Language: C++ Result: Accepted Time:8 ms Memory:2072 kb ****************************************************************/