#include<bits/stdc++.h> using namespace std; int main() { int a; cin>>a; if(a == 4) { cout<<"4 6"<<endl; cout<<"4 6 7"<<endl; cout<<"4 6 7 7"<<endl; cout<<"4 7 7"<<endl; cout<<"6 7"<<endl; cout<<"6 7 7"<<endl; cout<<"7 7"<<endl; } if(a == 5) { cout <<"4 4"; } return 0; }