#include <bits//stdc++.h>
using namespace std;
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2,fma,bmi,bmi2,abm,lzcnt,popcnt")
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
unsigned int n, q;
cin >> n >> q;
unsigned int a[n], b[n];
for(unsigned int i = 0; i < n; i++) cin >> a[i] >> b[i];
unsigned int t1, t2, t3, an;
while (q--) {
cin >> t1 >> t2 >> t3;
an = 0;
for(unsigned int i = 0; i < n; i++) {
if (a[i] >= t1 && b[i] >= t2 && (a[i]+b[i]) >= t3) an++;
}
cout << an << "\n";
}
}
