#include <bits/stdc++.h>
using namespace std;
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) begin(v),end(v)
template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; }
template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; }
using ll = long long;
using pii = pair<int, int>;
constexpr ll INF = 1ll<<30;
constexpr ll longINF = 1ll<<60;
constexpr ll MOD = 1000000007;
constexpr bool debug = false;
//---------------------------------//

int main() {
	int N;
	cin >> N;
	vector<ll> ans;
	ll x = 1;
	REP(i, N + 1) {
		ll y = 1;
		REP(j, N + 1) {
			ans.emplace_back(x * y);
			cout << x << " " << y << endl;
			y *= 5;
		}
		x *= 2;
	}
	sort(ALL(ans));
	for (ll a : ans) printf("%lld\n", a);
}