#include <iostream>
#include <bits/stdc++.h>
#include <cmath>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
#include <stack>
#include <string>
#include <map>
#include <queue>
#define int long long
#define sqrt sqrtl
using namespace std;
const long long oo = 1000000000000000000;
long long sum, ans = 0, mx = 0, mn = 1000000000, num, pos;
/*
ViHHiPuh
(( `'-""``""-'` ))
)-__-_.._-__-(
/ --- (o _ o) --- \
\ .-* ( .0. ) *-. /
_'-. ,_ '=' _, .-'_
/ `;#'#'# - #'#'#;` \
\_)) -----'#'----- ((_/
# --------- #
'# ------- ------ #'
/..-'# ------- #'-.\
_\...-\'# -- #'/-.../_
((____)- '#' -(____))
cout << fixed << setprecision(6) << x;
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
freopen ( "sum.in", "r", stdin )
*/
int n, m, x, y, a[ 100001 ], b[ 100001 ], c[ 100001 ], an[ 100001 ], t[ 1000001 ];
map <int, int> mp;
vector <pair<int, int> > v;
vector <int> vv;
vector <pair<int, int> > v1;
void upd( int v, int tl, int tr, int pos ) {
if ( tl > pos || tr < pos )
return;
if ( tl == tr ) {
t[ v ] = 1;
return;
}
int mid = ( tl + tr ) / 2;
upd( v + v, tl, mid, pos );
upd( v + v + 1, mid + 1, tr, pos );
t[ v ] = t[ v + v ] + t[ v + v + 1 ];
}
void gett( int v, int tl, int tr, int l, int r ) {
if ( tl > r || tr < l )
return;
if ( tl >= l && tr <= r ) {
sum += t[ v ];
return;
}
int mid = ( tl + tr ) / 2;
gett( v + v, tl, mid, l, r );
gett( v + v + 1, mid + 1, tr, l, r );
}
main () {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
cin >> n >> m;
for ( int i = 1; i <= n; i ++ ) {
cin >> a[ i ] >> b[ i ];
}
for ( int i = 1; i <= m; i ++ ) {
cin >> x >> y >> c[ i ];
sum = 0;
for ( int j = 1; j <= n; j ++ ) {
if ( a[ j ] >= x && b[ j ] >= y && a[ j ] + b[ j ] >= c[ i ] )
sum ++;
}
cout << sum << "\n";
}
}
