#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("inline")
#pragma GCC optimize("fast-math")
#pragma GCC optimize("tree-vectorize")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define int long long
#define endl '\n'
#define F first
#define S second
#define pii pair<int, int>
#define pic pair<int, char>
#define pci pair<char, int>
#define psi pair<string, int>
#define pis pair<int, string>
#define pipii pair<int, pair<int, int>>
#define piipi pair<pair<int, int>, int>
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define yes() cout << "YES" << endl
#define no() cout << "NO" << endl
int dx[] = {2, 2, 1, 1, -1, -1, -2, -2};
int dy[] = {1, -1, -2, 2, -2, 2, -1, 1};
const int MOD = 1e9 + 7;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
template<typename T>
using indexed_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<typename T>
using ordered_multiset = tree<pair<T,int>, null_type, less<pair<T,int>>, rb_tree_tag, tree_order_statistics_node_update>;
signed main() {
// freopen("input.txt","r",stdin);
// freopen("output.txt","w",stdout);
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int n, q;
cin >> n >> q;
int a[n + 1], b[n + 1];
for(int i = 1;i <= n;i++){
cin >> a[i] >> b[i];
}
while(q--){
int A, B;
cin >> A >> B;
vector<pii> vt;
for(int i = 1;i <= n;i++){
if(a[i] >= A && b[i] <= B) vt.push_back({a[i], b[i]});
}
sort(all(vt));
int ans = 0;
for(int i = 0;i < vt.size();i++){
for(int j = i;j < vt.size();j++){
if(vt[i].F < vt[j].F && vt[i].S < vt[j].S){
ans++;
i = j - 1;
break;
}
}
}
cout << vt.size() - ans << endl;
}
}
