#include using namespace std; typedef long long ll; #define rep(i,n) for(int (i)=0;(i)<(int)(n);++(i)) #define each(itr,c) for(__typeof(c.begin()) itr=c.begin(); itr!=c.end(); ++itr) #define all(x) (x).begin(),(x).end() #define pb push_back #define fi first #define se second typedef pair pi; struct line { int a,b; bool operator<(const line& t) const { return (ll)a*(t.a+t.b) < (ll)t.a*(a+b); } }; inline int intersect_inside(line m, line n) { if((ll)m.a*(n.a+n.b) + (ll)n.a*(m.a+m.b) > (ll)(m.a+m.b)*(n.a+n.b)) return 1; return 0; } inline int intersect_onedge(line m, line n) { if((ll)m.a*(n.a+n.b) + (ll)n.a*(m.a+m.b) == (ll)(m.a+m.b)*(n.a+n.b)) return 1; return 0; } int main() { int n; scanf(" %d", &n); vector l[3]; rep(i,n) { int p,a,b; scanf(" %d %d %d", &p, &a, &b); int G=__gcd(a,b); a/=G; b/=G; l[p].pb(line{a,b}); } rep(i,3) sort(all(l[i])); int two=0,three=0; rep(i,3) { int R=i, P=(i+1)%3, Q=(i+2)%3; rep(j,l[P].size())rep(k,l[Q].size()) { line pp=l[P][j], qq=l[Q][k]; two+=intersect_inside(pp,qq); if(intersect_inside(pp,qq) || intersect_onedge(pp,qq)) { line base = max(line{pp.b,pp.a}, line{qq.b,qq.a}); // printf("base (%d, %d)\n", base.a, base.b); int idx = lower_bound(all(l[R]),base) - l[R].begin(); three += (int)l[R].size()-idx; // printf("idx = %d : (%d, %d)\n", idx,l[R][idx].a, l[R][idx].b); ll D=(ll)pp.a*(qq.a+qq.b) + (ll)qq.a*(pp.a+pp.b); ll C=(ll)(pp.a+pp.b)*(qq.a+qq.b); ll A=2*C-D, B=D-C; ll G=__gcd(A,B); A/=G; B/=G; if(A>0 && B>0 && A+B<=400000) { line lb = *lower_bound(all(l[R]),line{(int)A,(int)B}); if(lb.a==A && lb.b==B) --three; } } } } assert(three%3==0); printf("%d\n", 1+n+two+three/3); return 0; }