#include #define syosu(x) fixed< P; typedef pair pdd; typedef pair pll; typedef vector vi; typedef vector vvi; typedef vector vd; typedef vector vvd; typedef vector vl; typedef vector vvl; typedef vector vs; typedef vector

vp; typedef vector vvp; typedef vector vpll; typedef pair pip; typedef vector vip; const int inf=1<<30; const ll INF=1ll<<60; const double pi=acos(-1); const long double eps=1e-10; const ll mod=1e9+7; const int dx[4]={-1,0,1,0},dy[4]={0,-1,0,1}; int n; vl x,y; vvl g; int main(){ ios::sync_with_stdio(0); cin.tie(0); cin>>n; x=y=vl(n); g=vvl(n,vl(n)); for(int i=0;i>x[i]>>y[i]; for(int i=0;i