#include <bits/stdc++.h>
#pragma GCC target ("avx2")
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#define file_io freopen("input.txt", "r", stdin);freopen("output.txt", "w", stdout);
#define fast_io ios::sync_with_stdio(false);cin.tie(0);
#define what(x) cerr << #x << " is " << x << '\n';
#define kill(x) {cout << x << '\n'; continue;}
#define all(x) (x).begin(), (x).end()
#define pii pair<int, int>
#define pb push_back
#define ll long long
#define F first
#define S second
const ll inf = 1e18, mod = 1e9 + 7, delta = 1e9 + 9, SQ = 450, P = 6065621;
using namespace std;
const ll N = 1e5 + 10, LG = 20;
int s[N], t[N];
int main() {
fast_io;
int n, q;
cin >> n >> q;
for (int i = 1; i <= n; i++)
cin >> s[i] >> t[i];
while (q--) {
int ans = 0, x, y, z;
cin >> x >> y >> z;
for (int i = 1; i <= n; i++)
ans += (s[i] >= x && t[i] >= y && s[i] + t[i] >= z);
cout << ans << '\n';
}
return 0;
}
