#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const int LIM=1e5+7;
pair<ll,ll>T[LIM];
ll wynik[LIM];
pair<pair<ll,ll>,ll>pyt[LIM];
vector<pair<ll,pair<ll,ll>>>A;
vector<ll>skal;
map<ll,ll>mp;
ll tr[4*LIM], N=1, akt=0;
void upd(int v, ll x) {
v+=N;
while(v) {
tr[v]+=x;
v/=2;
}
}
ll cnt(int l, int r) {
if(l>r) return 0;
l+=N; r+=N;
ll ans=tr[l];
if(l!=r) ans+=tr[r];
while(l/2!=r/2) {
if(l%2==0) ans+=tr[l+1];
if(r%2==1) ans+=tr[r-1];
l/=2; r/=2;
}
return ans;
}
int main() {
ios_base::sync_with_stdio(0); cin.tie(0);
int n, q;
cin >> n >> q;
rep(i, n) {
cin >> T[i].st >> T[i].nd;
A.pb({-T[i].st, {-1, T[i].nd}});
}
rep(i, q) {
cin >> pyt[i].st.st >> pyt[i].st.nd >> pyt[i].nd;
pyt[i].nd=max(pyt[i].nd, pyt[i].st.st+pyt[i].st.nd);
A.pb({-max(pyt[i].st.st, pyt[i].nd-pyt[i].st.nd), {i, pyt[i].st.nd}});
}
for(auto i : A)
skal.pb(i.nd.nd);
sort(all(skal));
for(auto i : skal)
if(mp.find(i)==mp.end()) mp[i]=akt++;
while(N<akt) N*=2;
sort(all(A));
for(auto i : A) {
if(i.nd.st==-1) upd(mp[i.nd.nd], 1);
else wynik[i.nd.st]+=cnt(mp[i.nd.nd], N-1);
}
rep(i, q) cout << wynik[i] << '\n';
}
