#include <iostream>

using namespace std;


struct student
{
    int fn;
    int problem;
    double points;
    bool out=0;

};


bool areTheSame (student student1, student student2)
{
    if (student1.fn==student2.fn && student1.problem==student2.problem && student1.points==student2.points)
        return true;
    return false;
}


student compareStudents (student student1, student student2)
{
    if (student1.fn>student2.fn)
        return student1;
        else if(student2.fn>student1.fn) return student2;
    else if (student1.problem>student2.problem) return student1;
    else if (student2.problem>student1.problem) return student2;
    else if (student1.points>student2.points) return student1;
    else if (student2.points>student1.points) return student2;
}


int main ()
{
    unsigned int n;
    student students[1000000];
    student minStudent;
    int i=0;

    cin>>n;

    for (int counter=0; counter<n; counter++)
            cin>>students[counter].fn>>students[counter].problem>>students[counter].points;


            while (i<n)
            {
                int f=0;
                while (students[f].out==1) f++;

                minStudent.fn=students[f].fn;
                minStudent.problem=students[f].problem;
                minStudent.points=students[f].points;

                for (int counter=0; counter<n; counter++)
                {
                    if (f!=counter && students[counter].out!=1)
                    {
                        minStudent.fn=compareStudents(students[counter], students[f]).fn;
                        minStudent.problem=compareStudents(students[counter], students[f]).problem;
                        minStudent.points=compareStudents(students[counter], students[f]).points;
                    }
                if (areTheSame(students[counter], minStudent)==1) students[counter].out=1;
                else students[f].out=1;

                }

                cout<<minStudent.fn<<" "<<minStudent.problem<<" "<<minStudent.points<<endl;
                i++;
            }


	return 0;
}