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[] xArr = new int[n];
		int[] yArr = new int[n];
		int[] hArr = new int[n];
		for (int i = 0; i < n; i++) {
		    xArr[i] = sc.nextInt() + 501;
		    yArr[i] = sc.nextInt() + 501;
		    hArr[i] = sc.nextInt();
		}
		int[][] imos = new int[1010][1010];
		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, 1009)][y] -= d;
		    imos[x][Math.min(y + h + 1, 1009)] -= d;
		    imos[Math.min(x + w + 1, 1009)][Math.min(y + h + 1, 1009)] += d;
		}
		for (int i = 1; i < 1010; i++) {
		    for (int j = 1; j < 1010; 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, hArr[i] - imos[xArr[i]][yArr[i]]);
		}
		System.out.println(ans);
	}
}