// Code by Parsa Eslami
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define FOR(i,a,b) for(int i=a;i<=b;i++)
#define FORR(i,a,b) for(int i=a;i>=b;i--)
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define bit(i,j) ((j>>i)&1)
#define pb push_back
#define all(x) x.begin(),x.end()
#define SZ(x) (int)x.size()
#define err(x) cerr<<#x<<" : "<<x<<'\n'
#define dmid int mid=(r+l)/2
#define lc 2*id
#define rc 2*id+1
using namespace std;
int main(){
iostream::sync_with_stdio(0); cin.tie(0);
int n,q; cin>>n>>q;
int a[n+1],b[n+1];
FOR(i,1,n) cin>>a[i]>>b[i];
FOR(_,1,q){
int A,B,C; cin>>A>>B>>C;
int ans=0;
FOR(i,1,n) if(a[i]>=A&&b[i]>=B&&(a[i]+b[i])>=C) ans++;
cout<<ans<<'\n';
}
return 0;
}
