#include <bits/stdc++.h>
using namespace std;
// #pragma GCC optimize("Ofast")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,fma")
// #pragma GCC optimize("unroll-loops")
#define ll long long
// #define int long long
#define F first
#define S second
void solve()
{
int n,m;
cin>>n>>m;
vector<pair<int,int>>q;
for(int i = 0;i<n;i++){
int x,y;
cin>>x>>y;
q.push_back({x,y});
}
while(m--){
int x,y;
cin>>x>>y;
vector<pair<int,int>>f;
for(int i = 0;i<n;i++){
if(x<=q[i].F && y>=q[i].S){
f.push_back(q[i]);
}
}
sort(f.rbegin(),f.rend());
multiset<pair<int,int>>qq;
for(int i = 0;i<f.size();i++){
pair<int,int>t;
bool y = false;
for(auto [l,r]:qq){
if(l>f[i].F && r>f[i].S){
t = {l,r};
y = true;
break;
}
}
if(y){
qq.erase(qq.find(t));
}
qq.insert({f[i].F,f[i].S});
}
cout<<qq.size()<<endl;
}
}
signed main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int t = 1;
// cin >> t;
while (t--)
{
solve();
}
}
