#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
using namespace std;
using std::cout;
using std::cin;
using std::endl;
using ll=long long;
using ld=long double;
const ll ILL=2167167167167167167;
const int INF=2100000000;
const int mod=998244353;
#define rep(i,a,b) for (int i=(int)a;i<(int)b;i++)
#define all(p) p.begin(),p.end()
template<class T> using _pq = priority_queue<T, vector<T>, greater<T>>;
template<class T> ll LB(vector<T> &v,T a){return lower_bound(v.begin(),v.end(),a)-v.begin();}
template<class T> ll UB(vector<T> &v,T a){return upper_bound(v.begin(),v.end(),a)-v.begin();}
template<class T> bool chmin(T &a,const T &b){if(a>b){a=b;return 1;}else return 0;}
template<class T> bool chmax(T &a,const T &b){if(a<b){a=b;return 1;}else return 0;}
template<class T> void So(vector<T> &v) {sort(v.begin(),v.end());}
template<class T> void Sore(vector<T> &v) {sort(v.begin(),v.end(),[](T x,T y){return x>y;});}
void yneos(bool a){if(a) cout<<"Yes\n"; else cout<<"No\n";}
template<class T> void vec_out(vector<T> &p){for(int i=0;i<(int)(p.size());i++){if(i) cout<<" ";cout<<p[i];}cout<<"\n";}
template<class T> T vec_min(vector<T> &a){assert(!a.empty());T ans=a[0];for(auto &x:a) chmin(ans,x);return ans;}
template<class T> T vec_max(vector<T> &a){assert(!a.empty());T ans=a[0];for(auto &x:a) chmax(ans,x);return ans;}
template<class T> T vec_sum(vector<T> &a){assert(!a.empty());T ans=a[0]-a[0];for(auto &x:a) ans+=x;return ans;}
int pop_count(long long a){int res=0;while(a){res+=(a&1),a>>=1;}return res;}



void solve();
// oddloop
int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	
	int t=1;
	//cin>>t;
	rep(i,0,t) solve();
}

void solve(){
	int N,M;
	cin>>N>>M;
	struct point{
		ll x;
		ll y;
	};
	auto f=[&](point a,point b,point c,point d)->bool{
		ll A=a.y-b.y;
		ll B=b.x-a.x;
		ll C=-(a.x*A+a.y*B);
		ll tmp=1;
		tmp*=(A*c.x+B*c.y+C);
		tmp*=(A*d.x+B*d.y+C);
		return tmp>=0;
	};
	auto g=[&](point a,point b,point c,point d)->bool{
		return f(a,b,c,d)|f(c,d,a,b);
	};
	auto hoj=[&](ll a)->ll{
		return a*a;
	};
	auto dist=[&](point a,point b)->ld{
		return sqrtl(hoj(a.x-b.x)+hoj(a.y-b.y));
	};
	vector<point> p(N*2);
	rep(i,0,N) rep(j,0,2){
		int ind=i+j*N;
		cin>>p[ind].x>>p[ind].y;
	}
	vector G(N*2,vector<ld>(N*2,INF));
	rep(i,0,N*2) G[i][i]=0;
	rep(i,0,N*2) rep(j,i+1,N*2){
		bool ok=1;
		rep(k,0,N){
			if(!g(p[i],p[j],p[k],p[k+N])) ok=0;
		}
		if(ok){
			//cout<<i<<" "<<j<<" "<<dist(p[i],p[j])<<endl;
			G[i][j]=dist(p[i],p[j]);
			G[j][i]=dist(p[j],p[i]);
		}
	}
	rep(i,0,N*2) rep(j,0,N*2) rep(k,0,N*2){
		chmin(G[i][j],G[i][k]+G[k][j]);
	}
	rep(i,0,M){
		int a,b,c,d;
		cin>>a>>b>>c>>d;
		a--,b--,c--,d--;
		a+=N*b;
		c+=N*d;
		//cout<<p[a].x<<" "<<p[a].y<<" "<<p[c].x<<" "<<p[c].y<<endl;
		cout<<fixed<<setprecision(20)<<G[a][c]<<"\n";
	}
}