#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
typedef pair<int,P> P1;
typedef pair<P,P> P2;
#define pu push
#define pb push_back
#define mp make_pair
#define eps 1e-7
#define INF 1000000000
#define fi first
#define sc second
#define rep(i,x) for(int i=0;i<x;i++)
#define SORT(x) sort(x.begin(),x.end())
#define ERASE(x) x.erase(unique(x.begin(),x.end()),x.end())
#define POSL(x,v) (lower_bound(x.begin(),x.end(),v)-x.begin())
#define POSU(x,v) (upper_bound(x.begin(),x.end(),v)-x.begin())
typedef complex<double> pt;
typedef pair<pt,pt> L;
typedef vector<P> poly;
const double EPS = 1e-9;
#define x real()
#define y imag()
int n;
double dot(pt a,pt b){
	return (conj(a)*b).x;
}
double cross(pt a,pt b){
	return (conj(a)*b).y;
}
pt project(pt po,pair<pt,pt> L){
	pt base = L.sc-L.fi;
	if(abs(base) <= EPS) return L.fi;
	double r = dot(po-L.fi,base) / norm(base);
	return L.fi+base*r;
}
pt reflect(pt po,pair<pt,pt> L){
    if(abs(L.fi-L.sc) <= EPS) return 2.0*L.fi-po;
	return po + (project(po,L)-po)*2.0;
}
bool eq(double a,double b){
  return (-EPS < a-b && a-b < EPS);
}
int ccw(pt a,pt b,pt c){
	b -= a; c -= a;
	if(cross(b,c) > EPS) return 1; // counter clockwise
	if(cross(b,c) < -EPS) return -1; // clockwise
	if(dot(b,c) < -EPS) return 2; //c-a-b
	if(norm(b) < norm(c)) return -2; //a-b-c
	return 0; //a-c-b
}
set<P>S;
vector<pt>p;
int main(){
	cin >> n ; 
	rep(i,n){
		double X,Y;
		scanf("%lf%lf",&X,&Y);
		int x2 = floor(X+EPS),y2 = floor(Y+EPS);
		if(S.find(mp(x2,y2)) != S.end()) continue;
		S.insert(mp(x2,y2));
		p.pb(pt(X,Y));
	}
	n = p.size();
	for(int i=2;i<n;i++) if(ccw(p[0],p[1],p[i])%2 != 0) goto ok;
	puts("No"); return 0; ok:;
	for(int i=1;i<n;i++){
		//0 and i
		for(int j=1;j<n;j++){
			if(i==j) continue;
			pt R = reflect(p[j],mp(p[0],p[i]));
			int X = floor(R.x),Y = floor(R.y);
			bool ok = 0;
			for(int xx=X-1;xx<=X+1;xx++){
				for(int yy=Y-1;yy<=Y+1;yy++){
					double X2 = (double)xx,Y2 = (double)yy;
					if(abs(R-pt(X2,Y2)) <= EPS){
						if(S.find(mp(xx,yy)) == S.end() || abs(p[j]-pt(X2,Y2))<=EPS) goto bad;
						ok = 1;
					}
				}
			}
			if(!ok) goto bad;
		}
		puts("Yes"); return 0; bad:;
	}
	for(int i=2;i<n;i++){
		//pass 0 and tangent to 1 and i
		pt B = p[0]+(p[1]-p[i])*pt(0.0,1.0);
		int cnt = 0;
		for(int j=1;j<n;j++){
			pt R = reflect(p[j],mp(p[0],B));
			int X = floor(R.x),Y = floor(R.y);
			bool ok = 0;
			for(int xx=X-1;xx<=X+1;xx++){
				for(int yy=Y-1;yy<=Y+1;yy++){
					double X2 = (double)xx,Y2 = (double)yy;
					if(abs(R-pt(X2,Y2)) <= EPS){
						if(S.find(mp(xx,yy)) == S.end()) goto bad2;
						if(abs(p[j]-pt(X2,Y2))<=EPS) cnt++;
						if(cnt>=2) goto bad2;
						ok = 1;
					}
				}
			}
			if(!ok) goto bad2;
		}
		puts("Yes"); return 0; bad2:;
	}
	for(int i=1;i<n;i++){
		//0 and i (midpoint)
		pt RR = (p[0]+p[i])/2.0;
		pt SS = RR+(p[0]-p[i])*pt(0.0,1.0);
		int cnt = 0;
		for(int j=1;j<n;j++){
			if(i==j) continue;
			pt R = reflect(p[j],mp(RR,SS));
			int X = floor(R.x),Y = floor(R.y);
			bool ok = 0;
			for(int xx=X-1;xx<=X+1;xx++){
				for(int yy=Y-1;yy<=Y+1;yy++){
					double X2 = (double)xx,Y2 = (double)yy;
					if(abs(R-pt(X2,Y2)) <= EPS){
						if(S.find(mp(xx,yy)) == S.end()) goto bad3;
						if(abs(p[j]-pt(X2,Y2))<=EPS) cnt++;
						if(cnt>=3) goto bad3;
						ok = 1;
					}
				}
			}
			if(!ok) goto bad3;
		}
		puts("Yes"); return 0; bad3:;
	}
	puts("No");
}

Measured memory_bytes: 3368