#include <cstdio>
#define INF "regiuni.in"
#define OUF "regiuni.out"
#define NMAX 1000
using namespace std;
//	int a[NMAX],b[NMAX],c[NMAX],xx[NMAX],yy[NMAX],bit[NMAX][32]={0};
int main()
{
	FILE *in,*out;
	in=fopen(INF,"r");
	out=fopen(OUF,"w");
	register int i,j,k,n,m,ok,dim;
        register int mask[32];
register	int a[NMAX],b[NMAX],c[NMAX],xx[NMAX],yy[NMAX],bit[NMAX][32]={0};
        register  char use[NMAX]={0};
	
	fscanf(in,"%d %d",&n,&m);
	for(i=0;i<32;i++) mask[i]=(1<<i);
	
//	for(i=1;i<=n;i++) printf("%d",mask[i]);
	for(i=0;i<n;i++)
	      	fscanf(in,"%d %d %d",a+i,b+i,c+i);
	for(i=0;i<m;i++) 
 		fscanf(in,"%d %d",xx+i,yy+i);

	for(i=0;i<m;i++)
	{
		for(j=0;j<n;j++)
		if(xx[i]*a[j]+yy[i]*b[j]+c[j]>0) bit[i][j/32]|=mask[j%32];
	}
 
	dim=0;
	for(i=0;i<m;i++)
	{
		if(!use[i])
		{
			use[i]=1;dim++;
			for(j=i+1;j<m;j++)
			{
			    ok=1;
		            for(k=0;k<32&&ok;k++)
			    if(bit[i][k]^bit[j][k]) ok=0;	    
			    if(ok) use[j]=1;
			}
		}
	}

	fprintf(out,"%d\n",dim);
	fclose(in);fclose(out);
	return 0;
}