#include <bits/stdc++.h>
#define pb push_back
#define pii pair<int, int>
#define MAX 1000000001
#define MOD 1000000007
#define INF 0x3F3F3F3F3F3F3F3F
#define OPT ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
typedef long long ll;
typedef unsigned long long ull;
using namespace std;
int main()
{
int n, q;
cin >> n >> q;
int math[n+1], info[n+1];
for(int i = 1; i<=n; i++)
cin >> math[i] >> info[i];
while(q--)
{
int a, b, c, k = 0;
cin >> a >> b >> c;
for(int i = 1; i<=n; i++)
{
if(math[i]>=a && info[i]>=b && math[i]+info[i]>=c)k++;
}
cout << k << endl;
}
}
