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