#include using namespace std; typedef signed long long ll; #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define FORR2(x,y,arr) for(auto& [x,y]:arr) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) template bool chmax(T &a, const T &b) { if(a bool chmin(T &a, const T &b) { if(a>b){a=b;return 1;}return 0;} //------------------------------------------------------- int Q; set V; set> E; set> F; void solve() { int i,j,k,l,r,x,y; string s; cin>>Q; while(Q--) { ll a,b,c; cin>>a>>b>>c; V.insert(a); V.insert(b); V.insert(c); E.insert({a,b}); E.insert({b,c}); E.insert({a,c}); F.insert({a*1000000000+b,c}); } cout<<(int)V.size()+(int)F.size()-(int)E.size()<