#include <bits/stdc++.h>
using namespace std;
#define rep(i, a, b) for (auto i = (a); i < (b); ++i)
const int N = 1 << 17;
int n, ans[N];
struct P { int x, y, z, i; bool first; } a[2 * N], tmp[2 * N];
void cdq2(int l, int r) {
if (r - l == 1) return;
int m = (l + r) / 2;
cdq2(l, m); cdq2(m, r);
int i = l, j = m, k = l, cnt = 0;
while (i < m && j < r) {
if (a[j].z <= a[i].z) {
if (!a[i].i && a[i].first) ++cnt;
tmp[k++] = a[i++];
} else {
if (a[j].i && !a[j].first) ans[a[j].i] += cnt;
tmp[k++] = a[j++];
}
}
while (i < m) tmp[k++] = a[i++];
while (j < r) {
if (a[j].i && !a[j].first) ans[a[j].i] += cnt;
tmp[k++] = a[j++];
}
rep(i, l, r) a[i] = tmp[i];
}
void cdq(int l, int r) {
if (r - l == 1) return;
int m = (l + r) / 2;
cdq(l, m); cdq(m, r);
rep(i, l, m) a[i].first = 1;
rep(i, m, r) a[i].first = 0;
sort(a + l, a + r, [](P &a, P &b) { return pair(-a.y, a.i) < pair(-b.y, b.i); });
cdq2(l, r);
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int q; cin >> n >> q;
rep(i, 0, n) {
int x, y; cin >> x >> y;
a[i] = {x, y, x + y, 0};
}
rep(i, 0, q) {
int x, y, z; cin >> x >> y >> z;
a[i + n] = {x, y, z, i + 1};
}
sort(a, a + n + q, [](P &a, P &b) { return pair(-a.x, a.i) < pair(-b.x, b.i); });
cdq(0, n + q);
rep(i, 0, q) cout << ans[i + 1] << '\n';
}
