#include <bits/stdc++.h>
using namespace std;
ifstream f("qclasa.in");
ofstream g("qclasa.out");
struct elev
{
    int cod,medie,abs;
}v[50];
bool cmp(elev A,elev B)
{
    if(A.abs>B.abs)
        return 1;
    else if(A.abs==B.abs && A.cod<B.cod)
        return 1;
    return 0;
}
int main()
{
    int n,cnt10=0,cnt=0,s=0;
    f>>n;
    for(int i=1;i<=n;i++)
    {
       f>>v[i].cod>>v[i].medie>>v[i].abs;
        if(v[i].medie==10)
            cnt10++;
        cnt++;
        s+=v[i].medie;
    }
    g<<cnt10<<"\n"<<s/cnt<<"\n";
    sort(v+1,v+n+1,cmp);
    g<<v[1].cod<<" "<<v[1].medie<<" "<<v[1].abs<<"\n";
    g<<v[2].cod<<" "<<v[2].medie<<" "<<v[2].abs<<"\n";
    return 0;
}