#include <bits/stdc++.h>
#include <stdio.h>
#define __Shibae__ signed main()
#define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define fiopen(Path) freopen(Path".INP", "r", stdin); freopen(Path".OUT", "w", stdout);
#define fipen(Path) freopen(Path".INP", "r", stdin);
#define sz(s) (int)s.size()
#define all(x) x.begin(), x.end()
#define maxHeap priority_queue<int>
#define minHeap priority_queue<int, vector<int>, greater<int>>
#define getBit(x, k) (((x) >> (k)) & 1)
#define MASK(i) (1LL << (i))
#define SQR(x) (1LL * ((x) * (x)))
#define db double
#define ld long double
#define ui unsigned int
#define ll long long
#define ii pair<int, int>
#define pli pair<ll, int>
#define pil pair<int, ll>
#define pll pair<ll, ll>
#define fi first
#define se second
#define FOR(i, a, b) for(int i = a, _b = b; i <= _b; i += 1)
#define FOD(i, a, b) for(int i = a, _b = b; i >= _b; i -= 1)
#define REP(i, a) for(int i = 0, _a = a; i < _a; i++)
#define pb push_back
#define fau(u, a) for(auto &u : a)
#define debug return cout << "debug", void();
using namespace std;
const ll mod = 1e9 + 7;
const int INF = 1e9 + 7;
const ll INFLL = (ll)2e18 + 7LL;
const ld PI = acos(-1);
const int MAX = 5e5+5;
const int dx[] = {1, -1, 0, 0, -1, 1, 1, -1};
const int dy[] = {0, 0, 1, -1, -1, -1, 1, 1};
mt19937 rd(chrono::steady_clock::now().time_since_epoch().count());
ll Rand(ll l, ll r)
{
return uniform_int_distribution<ll>(l, r)(rd);
}
template<class SHIBA, class ENGINE>
bool minimize(SHIBA &x, const ENGINE y)
{
if(x > y)
{
x = y;
return true;
}
else return false;
}
template<class SHIBA, class ENGINE>
bool maximize(SHIBA &x, const ENGINE y)
{
if(x < y)
{
x = y;
return true;
}
else return false;
}
/* Template by: Nguyen Nhat Anh from Luong Van Chanh High School for the gifted */
/* From Min Tuoi with love */
/** TRY HARD **/
/** ORZ **/
/* -----------------[ MAIN CODE ]----------------- */
struct Node
{
int x, y, z, type, id;
bool operator < (const Node &b) const
{
if (x != b.x) return x > b.x;
return type > b.type;
}
};
int N;
int n, q;
Node a[MAX];
int bit[MAX];
int res[MAX];
void update(int i, int k)
{
for (; i; i -= i & -i) bit[i] += k;
}
int get(int i)
{
int res = 0;
for (; i <= N; i += i & -i) res += bit[i];
return res;
}
vector<int> ax, ay, az;
void input()
{
cin >> n >> q;
FOR(i, 1, n)
{
cin >> a[i].x >> a[i].y;
a[i].z = a[i].x + a[i].y;
a[i].type = 1;
ax.pb(a[i].x);
ay.pb(a[i].y);
az.pb(a[i].z);
}
FOR(i, n+1, n+q)
{
cin >> a[i].x >> a[i].y >> a[i].z;
a[i].id = i-n;
ax.pb(a[i].x);
ay.pb(a[i].y);
az.pb(a[i].z);
}
}
void dnc(int l, int r)
{
if (l == r) return;
int m = l + r >> 1;
vector<int> idx(r-l+1);
iota(all(idx), l);
sort(all(idx), [&](const int &i, const int &j){
return a[i].y > a[j].y;
});
vector<int> tmp;
fau(i, idx)
{
if (i <= m && a[i].type == 1)
{
update(a[i].z, 1);
tmp.pb(a[i].z);
}
else if (i > m && a[i].type == 0) res[a[i].id] += get(a[i].z);
}
fau(x, tmp) update(x, -1);
dnc(l, m);
dnc(m+1, r);
}
void solve()
{
sort(all(ax));
ax.resize(unique(all(ax)) - ax.begin());
sort(all(ay));
ay.resize(unique(all(ay)) - ay.begin());
sort(all(az));
az.resize(unique(all(az)) - az.begin());
FOR(i, 1, n+q)
{
a[i].x = lower_bound(all(ax), a[i].x) - ax.begin() + 1;
a[i].y = lower_bound(all(ay), a[i].y) - ay.begin() + 1;
a[i].z = lower_bound(all(az), a[i].z) - az.begin() + 1;
}
sort(a+1, a+1+n+q);
N = az.size();
dnc(1, n+q);
FOR(i, 1, q) cout << res[i] << "\n";
}
__Shibae__
{
IOS
const bool multitest = 0;
int tt = 1; if(multitest) cin >> tt;
while( tt-- ){
input();
solve();
if(tt) cout << "\n";
}
return 0;
}
