#include <bits/stdc++.h>
#pragma GCC target ("avx2")
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#define F first
#define S second
using namespace std;
using ll = long long;
using pi = pair<int, int>;
using vi = vector<int>;
template<class T> bool ckmin(T& a, T b) { return b < a ? a = b, true : false; }
template<class T> bool ckmax(T& a, T b) { return a < b ? a = b, true : false; }
int main() {
ios::sync_with_stdio(0); cin.tie(0);
int n, q; cin >> n >> q;
vector<int> s(n + 1), t(n + 1);
for (int i = 1; i <= n; ++i) cin >> s[i] >> t[i];
while (q--) {
int a, b, c; cin >> a >> b >> c;
int ans = 0;
for (int i = 1; i <= n; ++i) {
if (s[i] >= a && t[i] >= b && s[i]+t[i] >= c) {
++ans;
}
}
cout << ans << "\n";
}
}
