#include <bits/stdc++.h>
using namespace std;
const int MAX_N = 2e5;
const int INF = 1e9;
int l[MAX_N + 1], r[MAX_N + 1], minL[MAX_N + 1], maxR[MAX_N + 1], minSufL[MAX_N + 1], maxPrefR[MAX_N + 1], dist1[MAX_N + 1], distN[MAX_N + 1], dist1R[MAX_N + 1], distNR[MAX_N + 1], par[MAX_N + 1];
int n;
void calc_dist1() {
struct dr {
int i, dist, maxR;
bool operator < ( const dr &x ) const {
if ( dist == x.dist )
return maxR < x.maxR;
return dist > x.dist;
}
};
for ( int i = 0; i <= n; i++ )
dist1[i] = INF, maxR[i] = 0;
priority_queue<dr> pq;
dist1[1] = 0;
maxR[1] = 0;
pq.push( { 1, dist1[1], maxR[1] } );
while ( !pq.empty() ) {
auto crt = pq.top();
pq.pop();
int i = crt.i;
for ( int j = 1; j <= n; j++ ) {
if ( l[j] <= i && i <= r[j] ) {
if ( dist1[i] + 1 <= dist1[j] && max( maxR[i], r[j] ) > maxR[j] ) {
dist1[j] = dist1[i] + 1;
par[j] = i;
maxR[j] = max( maxR[i], r[j] );
pq.push( { j, dist1[j], maxR[j] } );
}
}
}
}
dist1[1] = 1;
maxR[1] = r[1];
}
void calc_distN() {
struct dr {
int i, dist, minL;
bool operator < ( const dr &x ) const {
if ( dist == x.dist )
return minL > x.minL;
return dist > x.dist;
}
};
for ( int i = 0; i <= n; i++ )
distN[i] = INF, minL[i] = n + 1;
priority_queue<dr> pq;
distN[n] = 0;
minL[n] = n + 1;
pq.push( { n, distN[n], minL[n] } );
while ( !pq.empty() ) {
auto crt = pq.top();
pq.pop();
int i = crt.i;
for ( int j = 1; j <= n; j++ ) {
if ( l[j] <= i && i <= r[j] ) {
if ( distN[i] + 1 <= distN[j] && min( minL[i], l[j] ) < minL[j] ) {
distN[j] = distN[i] + 1;
par[j] = i;
minL[j] = min( minL[i], l[j] );
pq.push( { j, distN[j], minL[j] } );
}
}
}
}
distN[n] = 1;
minL[n] = r[n];
}
void calc_dist1_rest() {
for ( int i = 0; i <= n; i++ )
dist1R[i] = INF;
minSufL[n] = l[n];
for ( int i = n - 1; i >= 1; i-- )
minSufL[i] = min( minSufL[i + 1], l[i] );
dist1R[1] = 0;
for ( int i = 2; i <= n; i++ )
dist1R[i] = dist1R[minSufL[i]] + 1;
}
void calc_distN_rest() {
for ( int i = n - 1; i >= 0; i-- )
distNR[i] = INF;
for ( int i = 1; i <= n; i++ )
maxPrefR[i] = max( maxPrefR[i - 1], r[i] );
distNR[n] = 0;
for ( int i = n - 1; i >= 1; i-- )
distNR[i] = distNR[maxPrefR[i]] + 1;
}
int main() {
ios_base::sync_with_stdio( false );
cin.tie( NULL );
cout.tie( NULL );
int q;
cin >> n;
for ( int i = 1; i <= n; i++ )
cin >> l[i] >> r[i];
calc_dist1();
calc_distN();
calc_dist1_rest();
calc_distN_rest();
cin >> q;
while ( q-- ) {
int x;
cin >> x;
int ans = min( distN[x] + dist1R[minL[x]], dist1[x] + distNR[maxR[x]] );
cout << (ans > n ? -1 : ans) << "\n";
}
return 0;
}
