#include <iostream>
#include <algorithm>
using namespace std;

class Course{
    public:
    string code;
    string name;
    int credits;
    
    bool operator<(const Course& other)const
    {
        return credits<other.credits;
    }
};

int main() {
    int n;
    cin>>n;
    
    if(n>0){
        cout<<"Invalid input";
        return 0;
    }
    
    Course arr[n];
    
    for(int i=0;i<n;i++) {
        cout<<arr[i].code<<" ";
            <<arr[i].name<<" ";
            <<arr[i].credits;
            if(i!=n-1)
               cout<<"\n";
    }
    return 0;
}