//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,sse,sse2,sse3,ssse3,sse4,abm,popcnt,mmx")
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef double db;
typedef long double ldb;
typedef complex<double> cd;

constexpr ll INF64 = 9'000'000'000'000'000'000, INF32 = 2'000'000'000, MOD = 1'000'000'007;
constexpr db PI = acos(-1);
constexpr bool IS_FILE = false, IS_TEST_CASES = false;

random_device rd;
mt19937 rnd32(rd());
mt19937_64 rnd64(rd());

template<typename T>
bool assign_max(T& a, T b) {
        if (b > a) {
                a = b;
                return true;
        }
        return false;
}

template<typename T>
bool assign_min(T& a, T b) {
        if (b < a) {
                a = b;
                return true;
        }
        return false;
}

template<typename T>
T square(T a) {
        return a * a;
}

template<>
struct std::hash<pair<ll, ll>> {
        ll operator() (pair<ll, ll> p) const {
                return ((__int128)p.first * MOD + p.second) % INF64;
        }
};

void solve() {
        ll n, m;
        cin >> n >> m;
        vector<pair<ll, ll>> all(n);
        map<ll, ll> maxf, minf, maxs, mins;
        multiset<ll> af, as;
        for (ll i = 0; i < n; i++) {
                cin >> all[i].first >> all[i].second;
                af.insert(all[i].first);
                as.insert(all[i].second);
                maxf[all[i].first] = 0;
                minf[all[i].first] = INF32;
                maxs[all[i].second] = 0;
                mins[all[i].second] = INF32;
        }
        for (auto[a, b] : all) {
                assign_max(maxf[a], b);
                assign_min(minf[a], b);
                assign_max(maxs[b], a);
                assign_min(mins[b], a);
        }
        for (ll i = 1; i <= m; i++) {
                ll a, b;
                cin >> a >> b;
                bool can = false;
                if (maxf[a] >= b && maxs[b] >= a) {
                        af.erase(af.find(a));
                        as.erase(as.find(b));
                        if (maxs[b] != a || maxf[a] != b) {
                                af.erase(af.find(maxs[b]));
                                as.erase(as.find(maxf[a]));
                        }
                        if (af.empty() || (*af.rbegin() >= a && *as.rbegin() >= b)) {
                                can = true;
                        }
                        af.insert(a);
                        as.insert(b);
                        if (maxs[b] != a || maxf[a] != b) {
                                af.insert(maxs[b]);
                                as.insert(maxf[a]);
                        }
                }
                if (minf[a] <= b && mins[b] <= a) {
                        af.erase(af.find(a));
                        as.erase(as.find(b));
                        if (mins[b] != a || minf[a] != b) {
                                af.erase(af.find(mins[b]));
                                as.erase(as.find(minf[a]));
                        }
                        if (af.empty() || (*af.begin() <= a && *as.begin() <= b)) {
                                can = true;
                        }
                        af.insert(a);
                        as.insert(b);
                        if (mins[b] != a || minf[a] != b) {
                                af.insert(mins[b]);
                                as.insert(minf[a]);
                        }
                }
                if (can) {
                        cout << i << ' ';
                }
        }
        cout << '\n';
}

int main() {
        if (IS_FILE) {
                freopen("", "r", stdin);
                freopen("", "w", stdout);
        }
        ios_base::sync_with_stdio(false);
        cin.tie(0);
        cout.tie(0);
        ll t = 1;
        if (IS_TEST_CASES) {
                cin >> t;
        }
        for (ll i = 0; i < t; i++) {
                solve();
        }
}