Th

#include <iostream>
#include <algorithm>
using namespace std;
const int N = 105;
int n;
int mx = 0, mn = N;
int t, sum;
int mxf, mnf;
int main(){
    cin >> n;
    for(int i = 1; i <= n; i++){
        mxf = 0;
        mnf = N;
        for(int j = 1; j <= 3; j++){
            cin >> t;
            sum += t;
            mxf = max(mxf, t);
            mnf = min(mnf, t);
        }
        sum -= mxf + mnf;
        mn = min(mn, mxf);
        mx = max(mx, mnf);
    }
    printf("%d %d %.1f", mn, mx, sum * 1.0 / n);
    return 0;
}