#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/hash_policy.hpp>
#define ll long long
#define all(v) v.begin(),v.end()
#define sz(v) ((ll)v.size())
#define V vector
#define vi V<int>
#define vll V<ll>
#define eb emplace_back
#define pii pair<int,int>
#define pll pair<ll,ll>
#define fi first
#define se second
#define A array
#define pb push_back
#define mset multiset
#define gpumap __gnu_pbds::gp_hash_table
#define ccumap __gnu_pbds::cc_hash_table
#define ui unsigned int
#define ull unsigned ll
#define i128 __int128
#define cerr if (test) cerr
#define freopen if (test) freopen
#define whtest if (test)
using namespace std;

const int test = 0;

namespace jhsy {
	template<class F,class Cmp>
	void solve(vi &vec,int d,vi &cnt,int m,F &&f,Cmp &&cmp) {
		if (sz(vec) == 1) {
			return;
		}
		if (d == m) {
			return f(vec,cnt);
		}
		const int mid = sz(vec)/2;
		vi vl(vec.begin(),vec.begin()+mid),vr(vec.begin()+mid,vec.end());
		solve(vl,d,cnt,m,f,cmp); solve(vr,d,cnt,m,f,cmp);
		merge(all(vl),all(vr),vec.begin(),cmp(d));
		for (auto x:vr) {
			cnt[x]++;
		}
		auto tmp = vec;
		solve(tmp,d+1,cnt,m,f,cmp);
		for (auto x:vr) {
			cnt[x]--;
		}
	}
	template<class F,class Cmp>
	void solve(int n,int m,F &&f,Cmp &&cmp) {
		if (!n || !m) {
			return;
		}
		vi vec(n),cnt(n);
		iota(all(vec),0);
		sort(all(vec),cmp(0));
		solve(vec,1,cnt,m,f,cmp);
	}
	const int D = 4;
	void main() {
		int n;
		cin >> n;
		V<A<int,D>> a(n);
		for (auto &p:a) {
			for (auto &x:p) {
				cin >> x;
			}
		}
		ll ans = 0;
		solve(n,D,[&](const vi &vec,const vi &cnt) {
			int k = 0;
			for (auto x:vec) {
				if (!cnt[x]) {
					k++;
				}
				if (cnt[x] == D-1) {
					ans += k;
					for (auto y:vec) {
						if (y == x) {
							break;
						}
						if (!cnt[y]) {
							c[y][x]++;
						}
					}
				}
			}
		},[&](int d) {
			return [&,d](int x,int y) {
				return a[x][d] < a[y][d];
			};
		});
		cout << ans << '\n';
	}
}

int main() {
	freopen("test.in","r",stdin);
	freopen("test.out","w",stdout);
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	cout << fixed << setprecision(20);

//	jhsy::init();

	int T = 1;
//	cin >> T;
	while (T--) {
		jhsy::main();
	}

	return 0;
}

answer.code: In lambda function:
answer.code:86:57: error: ‘c’ was not declared in this scope
   86 |                                                         c[y][x]++;
      |                                                         ^
answer.code: In function ‘int main()’:
answer.code:101:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  101 |         freopen("test.in","r",stdin);
      |                ^
answer.code:102:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  102 |         freopen("test.out","w",stdout);
      |                ^