#include <bits/stdc++.h>
#include <fstream>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
template<class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
struct custom_hash {static uint64_t splitmix64(uint64_t x) {x += 0x9e3779b97f4a7c15;x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;x = (x ^ (x >> 27)) * 0x94d049bb133111eb;return x ^ (x >> 31);}size_t operator()(uint64_t x) const {static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();return splitmix64(x + FIXED_RANDOM);}};
// string __fname = ""; ifstream in (__fname + ".in"); ofstream out (__fname + ".out");
// #define cin in
// #define cout out
#define int64 long long
#define uint64 unsigned long long
#define x first
#define y second
#define pb push_back
#define pii pair <int, int>
#define pii64 pair <int64, int64>
#define db(x) cout << "> " << #x << ": " << (x) << "\n"
#define qr queries()
#define yn(x) if (x) {ctn("Yes");}else {ctn("No");}
void solve(int);
void queries(){int n;cin >> n;for (int i = 1; i <= n; i++) solve(i);}
template<class T>T ceildiv(T a, T b) {return a / b + !!(a % b);}
template<class T>T gcd (T a, T b){return (b ? gcd(b, a % b): a);}
template<class T>T lcm (T a, T b){return a * b / gcd(a, b);}
// // // // // // // // // // // // // // // // // // // // // //
/* TEMPLATE - VANILLA */
// // // // // // // // // // // // // // // // // // // // // //
const int ddx[] = {-1, -1, 0, 1, 1, 1, 0, -1};
const int ddy[] = {0, 1, 1, 1, 0, -1, -1, -1};
const int dx[] = {-1, 0, 1, 0};
const int dy[] = {0, 1, 0, -1};
const double pi = 3.14159265359;
const double eps = 1e-6;
const int64 hash_inv = 940594066;
const int64 hash_p = 101;
const int64 mod = 1e9 + 7;
const int maxn = 2e5 + 2;
const int maxv = 2e9 + 2;
pii a [maxn];
int rs [maxn];
void solve(int id){
return;
}
struct node {
int l,r;
int64 v;
node* left = NULL;
node* right = NULL;
node(int _l, int _r, int64 _v): l(_l), r(_r), v(_v) {};
inline void extend() {
if (left != NULL) return;
int mid = (l + r) / 2;
left = new node(l, mid, 0);
right = new node(mid + 1, r, 0);
}
inline int64 query (int il, int ir) {
if (il <= l && r <= ir) return v;
if (l > ir || r < il) return 0;
extend();
return left->query(il, ir) + right->query(il, ir);
}
inline void update (int x, int64 nval) {
if (l == r && l == x) return void(v+=nval);
if (l > x || r < x) return;
extend();
left->update(x, nval);
right->update(x, nval);
v = left->v + right->v;
}
};
struct event {
int type;
int x;
int l;
int r;
int idx;
bool operator < (const event& oth) const {
if (x != oth.x) return x > oth.x;
return type < oth.type;
}
};
int main(){
ios_base::sync_with_stdio(0); cin.tie(0); cout << fixed; cout << setprecision(10);
node* xsg = new node (0, maxv, 0), *ysg = new node (0, maxv, 0);
vector <event> sl;
int n,q;
cin >> n >> q;
for (int i = 0; i < n; i++){
cin >> a[i].x >> a[i].y;
sl.push_back({0, a[i].x + a[i].y, a[i].x, a[i].y, -1});
}
for (int i = 0; i < q; i++){
int x,y,z;
cin >> x >> y >> z;
sl.push_back({1, max(x + y, z), x, y, i});
}
sort(sl.begin(), sl.end());
int sf = 0;
for (auto& [t, x, l, r, idx]: sl) {
// cout << t << " " << x << " " << l << " " << r << " " << idx << "\n";
if (t == 0) {
xsg->update(l, 1);
ysg->update(r, 1);
sf++;
}
else {
rs[idx] = xsg->query(l, maxv) + ysg->query(r, maxv) - sf;
}
}
for (int i = 0; i < q; i++){
cout << rs[i] << "\n";
}
return 0;
}
