#include <bits/stdc++.h>

using namespace std;

#define DEBUG if(1)
#define MAXN 50500
#define MAX 500
#define MAXL 20
#define MIN -2000000
#define INF (1 << 30)
#define MOD 1000000007
#define s(n) scanf("%d", &n)
#define ss(a,b) scanf("%d %d",&a,&b)
#define pb push_back
#define mp make_pair
#define sz(a) int(a.size())
#define lli long long int
// #define lli unsigned long long int
#define lb long double
#define rep(i,a,n) for (int i=a;i<n;i++)
#define ler(a,n,vec) for(int i=0;i<n;i++)s(a), vec.pb(a)
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> ii;
#define F first
#define S second
//ios_base::sync_with_stdio(false);
int dx[] = {0, 0, 1, -1};
int dy[] = {1, -1, 0, 0};
int ddx[] = {1, 0};
int ddy[] = {1, 1};

int main(){

int n;
int a[2510], b[2510], c[2510], d[2510];
unordered_map<int, int> xx;

    s(n);
    xx.reserve(15000000);
    for(int i=0;i<n;i++){
     	s(a[i]);
     	s(b[i]);
     	s(c[i]);
     	s(d[i]);
    }
    for(int i=0;i<n;i++){
    	for(int j=0;j<n;j++){
    		xx[a[i] + b[j]]++;
    	}
    }
    int ans = 0;


    for(int i=0;i<n;i++){
    	for(int j=0;j<n;j++){
    		ans += xx[-(c[i] + d[j])];
    	}
    }

    printf("%d\n", ans);

    return 0;
}