import java.util.*;

public class Main {
    public static void main(String[]  args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        int size = 1503;
        int[] xArr = new int[n];
        int[] yArr = new int[n];
        int[] hpArr = new int[n];
        int[][] field = new int[size][size];
        for (int i = 0; i < n; i++) {
            xArr[i] = sc.nextInt() + 500;
            yArr[i] = sc.nextInt() + 500;
            hpArr[i] = sc.nextInt();
        }
        for (int i = 0; i < k; i++) {
            int x = sc.nextInt() + 500;
            int y = sc.nextInt() + 500;
            int w = sc.nextInt();
            int h = sc.nextInt();
            int hp = sc.nextInt();
            field[x][y] += -hp;
            field[x + w + 1][y] += hp;
            field[x][y + h + 1] += hp;
            field[x + w + 1][y + h + 1] += -hp;
        }
        for (int i = 1; i < size; i++) {
            for (int j = 0; j < size; j++) {
                field[i][j] += field[i - 1][j];
            }
        }
        for (int i = 1; i < size; i++) {
            for (int j = 0; j < size; j++) {
                field[j][i] += field[j][i - 1];
            }
        }
        long sum = 0;
        for (int i = 0; i < n; i++) {
            if (field[xArr[i]][yArr[i]] + hpArr[i] > 0) {
                sum += field[xArr[i]][yArr[i]] + hpArr[i];
            }
        }
        System.out.println(sum);
    }
}