/*,
author: quangthenpc..
i'm terribly bad at coding, tbh.
,*/
#include <bits/stdc++.h>
using namespace std;
#define inout freopen("A.INP", "r", stdin); freopen("A.OUT", "w", stdout);
#define int long long
#define i64 int64_t
#define all(a) a.begin(), a.end()
#define pb push_back
#define pii pair<int, int>
#define fi first
#define se second
#define sz(a) (int)a.size()
int stringToInt(string s) {
int res = 0;
for(int i = 1; i <= sz(s); i++) {
res += (s[i - 1] - '0') * pow(10, sz(s) - i);
}
return res;
}
int dx[] = {0, 0, 1, -1};
int dy[] = {1, -1, 0, 0};
const int MAXN = 2e5 + 2;
const int INF = LONG_MAX;
// --------------------------- //
int n, q;
vector<pii> s, t, sum;
vector<int> s1, t1, sum1;
// --------------------------- //
void solve(void) {
cin >> n >> q;
for(int i = 0; i < n; i++) {
int a, b;
cin >> a >> b;
s.pb({a, i});
t.pb({b, i});
sum.pb({a + b, i});
s1.pb(a);
t1.pb(b);
sum1.pb(a + b);
}
sort(all(s));
sort(all(t));
sort(all(sum));
sort(all(s1));
sort(all(t1));
sort(all(sum1));
string temp = "";
for(int i = 0; i < n; i++) {
temp += '0';
}
vector<string> check1(n, temp), check2(n, temp), check3(n, temp);
for(int i = 0; i < n; i++) {
if(i) {
check1[i] = check1[i - 1];
check2[i] = check2[i - 1];
check3[i] = check3[i - 1];
}
check1[i][s[i].se] = '1';
check2[i][t[i].se] = '1';
check3[i][sum[i].se] = '1';
}
while(q--) {
int x, y, z;
cin >> x >> y >> z;
auto itx = lower_bound(all(s1), x);
auto ity = lower_bound(all(t1), y);
auto itz = lower_bound(all(sum1), z);
string x1, y1, z1;
if(itx != s1.end()) {
x1 = check1[n - 1 - (itx - s1.begin())];
} else {
x1 = temp;
}
if(ity != t1.end()) {
y1 = check2[n - 1 - (ity - t1.begin())];
} else {
y1 = temp;
}
if(itz != sum1.end()) {
z1 = check3[n - 1 - (itz - sum1.begin())];
} else {
z1 = temp;
}
int res = 0;
for(int i = 0; i < n; i++) {
if(x1[i] == '1' && y1[i] == '1' && z1[i] == '1') {
res++;
}
}
cout << res << '\n';
}
}
signed main(void) {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
// inout;
solve();
return 0;
}
