#include <bits/stdc++.h>
using namespace std;
#define int long long
const int maxn = 2e5 + 20, m = 450, INF = 1e9;
int Rcost[maxn];
pair<int,int> Lcost[maxn];
bool cmp(int a, int b) {
return Lcost[a].second < Lcost[b].second;
}
signed main() {
ios::sync_with_stdio(0); cin.tie(0);
int n;
cin >> n;
pair<int,int> a[n+1];
vector<pair<int,int>> Lpos[m], Lpos1[m];
vector<pair<int,int>> lpos[n+1], lpos1[n+1];
for (int i=1;i<=n;i++) {
cin >> a[i].first >> a[i].second;
Lpos1[a[i].first/m].push_back({a[i].second, i});
lpos1[a[i].first].push_back({a[i].second, i});
}
for (int i=0;i<m;i++) Lpos[i] = Lpos1[i];
for (int i=1;i<=n;i++) lpos[i] = lpos1[i];
for (int i=0;i<m;i++) sort(Lpos[i].begin(), Lpos[i].end());
for (int i=0;i<=n;i++) sort(lpos[i].begin(), lpos[i].end());
bool vis[n+1];
for (int i=1;i<=n;i++) vis[i] = false;
vis[n] = true;
vector<int> from = {n}, to;
int Rcost[n+1];
for (int i=1;i<=n;i++) Rcost[i] = INF;
for (int cost=-1; from.size()>0; cost++) {
for (int u:from) Rcost[u] = max(cost, (int)0);
for (int u:from) {
for (int L=0;(L+1)*m-1<=u;L++) {
while (Lpos[L].size()>0 && Lpos[L].back().first>=u) {
int v = Lpos[L].back().second;
if (!vis[v]) to.push_back(v);
vis[v] = true;
Lpos[L].pop_back();
}
}
int l = u/m*m;
for (;l<=u;l++) {
// if (lpos[l].size()>0) cout << "test " << lpos[l].back().first << endl;
while (lpos[l].size()>0 && lpos[l].back().first>=u) {
int v = lpos[l].back().second;
// if (!vis[v]) cout << cost << " " << u << " " << v << endl;
if (!vis[v]) to.push_back(v);
vis[v] = true;
lpos[l].pop_back();
}
}
}
from.clear();
swap(to, from);
}
for (int i=0;i<m;i++) Lpos[i] = Lpos1[i];
for (int i=1;i<=n;i++) lpos[i] = lpos1[i];
for (int i=0;i<m;i++) sort(Lpos[i].begin(), Lpos[i].end());
for (int i=0;i<=n;i++) sort(lpos[i].begin(), lpos[i].end());
for (int i=1;i<=n;i++) vis[i] = false;
vis[1] = true;
from = {1};
for (int i=1;i<=n;i++) Lcost[i] = {INF, INF};
Lcost[1].second = Rcost[1] + 1;
for (int cost=0; from.size()>0; cost++) {
sort(from.begin(), from.end(), cmp);
for (int u:from) Lcost[u].first = cost;
for (int u:from) {
for (int L=0;(L+1)*m-1<=u;L++) {
while (Lpos[L].size()>0 && Lpos[L].back().first>=u) {
int v = Lpos[L].back().second;
if (!vis[v]) {
to.push_back(v);
Lcost[v].second = min(Rcost[v], Lcost[u].second);
}
vis[v] = true;
Lpos[L].pop_back();
}
}
int l = u/m*m;
for (;l<=u;l++) {
while (lpos[l].size()>0 && lpos[l].back().first>=u) {
int v = lpos[l].back().second;
if (!vis[v]) {
to.push_back(v);
Lcost[v].second = min(Rcost[v], Lcost[u].second);
}
vis[v] = true;
lpos[l].pop_back();
}
}
}
from.clear();
swap(to, from);
}
int q;
cin >> q;
for (int i=0;i<q;i++) {
int pos;
cin >> pos;
// cout << Lcost[pos].first << " " << Lcost[pos].second << endl;
if (Lcost[pos].first>=INF || Lcost[pos].second>=INF) cout << "-1\n";
else cout << Lcost[pos].first + Lcost[pos].second << "\n";
}
}
