#include "bits/stdc++.h"
using namespace std;
#define fastcin {\
    cin.tie(0);\
    ios::sync_with_stdio(false);\
}
#define REP(i, a, b) for(int i = a; i < b; i++)
#define RREP(i, a, b) for(int i = a; i > b; i--)
#define print(x) cout << x << "\n"
#define SORT(a, n) sort(a, a+n);
#define REVERSE(a,n) reverse(a,a+n);
#define VSORT(v) sort(v.begin(), v.end());
#define VREVERSE(v) reverse(v.begin(), v.end());
#define MOD 1000000007
typedef long long ll;

int main() {
    fastcin;
    int N;
    cin >> N;
    int q[10000][2];
    REP(i, 0, N) cin >> q[i][0] >> q[i][1];

    int M;
    cin >> M;
    int m[1000][3] = {}, max, count;
    REP(i, 0, M) {
        cin >> m[i][0] >> m[i][1];
        REP(j, 0, N) {
            if(m[i][0]<=q[j][0] && m[i][1]>=q[j][1]) m[i][2]++;
        }
        if(max < m[i][2]) max = m[i][2];
    }

    vector<int> k;
    if(max) {
        REP(i, 0, M) {
            if(m[i][2] == max) {
                k.push_back(i+1);
            }
        }
    }

    int s = k.size();
    if(s!=0) {
        REP(i, 0, s) print(k[i]);
    } else print(0);
    return 0;
}