#include <bits/stdc++.h>
#define int long long
#define endl "\n"
using namespace std;

const int N = 1e5 + 10;
int l[N], r[N], d[N], hp[N], x[N];
int suff[N], a[N];
int n, m, k;

main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);

	cin >> n >> m;
	for(int i = 1; i <= m; i++) {
		cin >> l[i] >> r[i] >> d[i];
		a[l[i]] += d[i];
		a[r[i] + 1] -= d[i];
  }

  for(int i = 1, cur = 0; i <= n; i++) {
		cur += a[i];
		a[i] = cur;
  }
	for(int i = n; i >= 1; i--) {
  	suff[i] = suff[i + 1] + a[i];
  }
  cin >> k;
  for(int i = 1; i <= k; i++) {
  	cin >> hp[i] >> x[i];
  }
  int ans = 0;
  for(int i = 1; i <= k; i++) {
  	if(hp[i] > suff[x[i]]) {
  		ans++;
  	}
  }
  cout << ans;
}