#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pii pair<ll,ll>
#define F first
#define S second
#define LOO(i,a,b) for (ll i = a; i<=b; i++)
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
#define OOL(i,a,b) for (ll i = b; i >=a; i--)
void solve() {
int n;
cin>>n;
vector<pii> points(n);
vector<int> xs(n),ys(n);
LOO(i,0,n-1) {
cin>>points[i].F>>points[i].S;
points[i].F+=2;
points[i].S+=2;
xs[i]=points[i].F;
ys[i]=points[i].S;
}
sort(all(xs));
sort(all(ys));
LOO(i,0,n-1) {
points[i].F=lower_bound(all(xs),points[i].F)-xs.begin()+2;
points[i].S=lower_bound(all(ys),points[i].S)-ys.begin()+2;
}
vector wallright(510,vector(510, false));
vector wallup(510, vector(510,false));
vector wallleft=wallright;
vector walldown=wallup;
int w;
cin>>w;
vector<pii> droites(w);
LOO(i,0,w-1) {
int a,b;
cin>>a>>b;
a--;b--;
droites[i]={a,b};
if (points[a].F==points[b].F) {
LOO(j,min(points[a].S,points[b].S),max(points[a].S,points[b].S)-1) {
if (points[a].F) wallright[points[a].F-1][j]=true;
wallleft[points[a].F][j]=true;
}
}
else {
LOO(j,min(points[a].F,points[b].F),max(points[a].F,points[b].F)-1) {
walldown[j][points[a].S]=true;
if (points[a].S) wallup[j][points[a].S-1]=true;
}
}
}
vector visited(510,vector<int>(510,-1));
priority_queue<pair<int,pair<int,int>>, vector<pair<int,pair<int,int>>>, greater<>> cool;
cool.push({0,{0,0}});
while (!cool.empty()) {
auto top =cool.top();
cool.pop();
// assert(top.S.F>=0 && top.S.S>=0 && top.S.F<510 && top.S.S<510);
if (visited[top.S.F][top.S.S]!=-1) continue;
visited[top.S.F][top.S.S]=top.F;
if (top.S.F+1<510) cool.emplace(wallright[top.S.F][top.S.S]+top.F, make_pair(top.S.F+1,top.S.S));
if (top.S.F-1>=0) cool.emplace(wallleft[top.S.F][top.S.S]+top.F, make_pair(top.S.F-1,top.S.S));
if (top.S.S+1<510 ) cool.emplace(wallup[top.S.F][top.S.S]+top.F, make_pair(top.S.F,top.S.S+1));
if (top.S.S>=1 ) cool.emplace(walldown[top.S.F][top.S.S]+top.F, make_pair(top.S.F,top.S.S-1));
}
// OOL(j,0,30) {
// LOO(i,0,30) cout << visited[i][j] << ' ';
// cout << '\n';
// }
// cout << "dud" << endl;
vector<int> mhm;
LOO(i,0,w-1) {
int x1 = points[droites[i].F].F;
int x2 = points[droites[i].S].F;
int y1 = points[droites[i].F].S;
int y2 = points[droites[i].S].S;
if (x1==x2) {
y1=min(y1,y2);
if (visited[x1][y1]==visited[x1-1][y1]) {
mhm.push_back(i);
}
}
else {
x1=min(x1,x2);
if (visited[x1][y1]==visited[x1][y1-1]) mhm.push_back(i);
}
}
cout << mhm.size() << '\n';
for (int ele: mhm) cout << ele+1 << '\n';
}
signed main() {
iostream::sync_with_stdio(false);
cin.tie(nullptr);
int t=1;
while (t--) solve();
}
