#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using mint = atcoder::static_modint<998244353>;
// // using mint = atcoder::static_modint<1000000007>;
using ld = long double;
using ll = long long;
#define mp(a,b) make_pair(a,b)
#define rep(i,s,n) for(int i=s; i<(int)n; i++)
const vector<int> dx{1,0,-1,0},dy{0,1,0,-1};

int main(){
    // ll n;cin >> n;
    ll Q;cin >> Q;
    set<ll> V;
    set<vector<ll>> E;
    set<vector<ll>> F;
    rep(i,0,Q){
        vector<ll> a(3);rep(j,0,3)cin >> a[j];
        sort(a.begin(),a.end());
        rep(j,0,3)V.insert(a[j]);
        rep(j,0,3){
            vector<ll> b{a[j],a[(j+1)%3]};
            sort(b.begin(),b.end());
            E.insert(b);
        }
        F.insert(a);
    }
    int ans=V.size()+F.size()-E.size();
    cout <<ans;
}