/******************************
Author: jhnah917(Justice_Hui)
g++ -std=c++17 -DLOCAL
******************************/
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target ("avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;
using uint = unsigned;
using ll = long long;
using ull = unsigned long long;
constexpr int SZ = 1 << 17;
int N, Q;
alignas(256) int S[SZ], T[SZ], Sum[SZ];
alignas(256) char Flags[SZ];
int main(){
ios_base::sync_with_stdio(false); cin.tie(nullptr);
cin >> N >> Q;
for(int i=1; i<=N; i++) cin >> S[i] >> T[i], Sum[i] = S[i] + T[i];
for(int i=1; i<=Q; i++){
int x, y, z, ans = 0; cin >> x >> y >> z;
for(int j=1; j<=N; j++) if(S[j] >= x && T[j] >= y && Sum[j] >= z) ans++;
cout << ans << "\n";
}
}
