import java.util.*;
import java.io.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int k = sc.nextInt();
        int[] xs = new int[n];
        int[] ys = new int[n];
        int[] hs = new int[n];
        for (int i = 0; i < n; i++) {
            xs[i] = sc.nextInt() + 501;
            ys[i] = sc.nextInt() + 501;
            hs[i] = sc.nextInt();
        }
        int[][] imos = new int[1003][1003];
        for (int i = 0; i < k; i++) {
            int x = sc.nextInt() + 501;
            int y = sc.nextInt() + 501;
            int w = sc.nextInt();
            int h = sc.nextInt();
            int d = sc.nextInt();
            imos[x][y] += d;
            imos[Math.min(x + w + 1, 1002)][y] -= d;
            imos[x][Math.min(y + h + 1, 1002)] -= d;
            imos[Math.min(x + w + 1, 1002)][Math.min(y + h + 1, 1002)] += d;
        }
        for (int i = 1; i < 1003; i++) {
            for (int j = 1; j < 1003; j++) {
                imos[i][j] += imos[i - 1][j] + imos[i][j - 1] - imos[i - 1][j - 1];
            }
        }
        long ans = 0;
        for (int i = 0; i < n; i++) {
            ans += Math.max(0, hs[i] - imos[xs[i]][ys[i]]);
        }
        System.out.println(ans);
    }
    
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public String nextLine() throws Exception {
        return br.readLine();
    }
    
    public String next() throws Exception {
        if (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
}