#include<bits/stdc++.h>
using namespace std;

#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)

#define mygc(c) (c)=getchar_unlocked()
#define mypc(c) putchar_unlocked(c)

#define ll long long
#define ull unsigned ll

void reader(int *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);}
void reader(int *x, int *y){reader(x);reader(y);}
void reader(int *x, int *y, int *z){reader(x);reader(y);reader(z);}
void reader(ll *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);}
int reader(char c[]){int i,s=0;for(;;){mygc(i);if(i!=' '&&i!='\n'&&i!='\r'&&i!='\t'&&i!=EOF) break;}c[s++]=i;for(;;){mygc(i);if(i==' '||i=='\n'||i=='\r'||i=='\t'||i==EOF) break;c[s++]=i;}c[s]='\0';return s;}

void writer(int x, char c){int s=0,m=0;char f[10];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);}
void writer(ll x, char c){int s=0,m=0;char f[20];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);}
void writer(const char c[]){int i;for(i=0;c[i]!='\0';i++)mypc(c[i]);}

int N, K;
int X[200000], Y[200000], H[200000];
ll mp[1555][1555];
ll sum[1555][1555];

int main(){
  int i, j, k;
  int x, y, w, h, d;
  ll res, add;

  reader(&N,&K);
  rep(i,N) reader(X+i,Y+i,H+i), X[i] += 505, Y[i] += 505;

  while(K--){
    reader(&x,&y);
    reader(&w,&h,&d);
    x += 505; y += 505;
    mp[x][y] += d;
    mp[x+w+1][y] -= d;
    mp[x][y+h+1] -= d;
    mp[x+w+1][y+h+1] += d;
  }

  rep(i,1550) rep(j,1550){
    sum[i+1][j+1] = sum[i][j+1] + sum[i+1][j] - sum[i][j] + mp[i][j];
  }

  res = 0;
  rep(i,N){
    add = H[i];
    add -= sum[X[i]+1][Y[i]+1];
    res += max(0LL, add);
  }

  writer(res,'\n');

  return 0;
}