#include<fstream>
using namespace std;
typedef struct { int x,y; } punct;
punct poligon[805], multime[60005];
int i,j,n,m,sol;

int main(void) {
    ifstream fin("poligon.in");
    ofstream fout("poligon.out");
    
    fin>>n>>m;
    for (i=1; i<=n; ++i) fin>>poligon[i].x>>poligon[i].y;
    poligon[n+1]=poligon[1];
    
    for (i=1; i<=m; ++i) {
        double x,y;
        fin>>x>>y;
        int nrm=0;
        for (j=1; j<=n; ++j) {
            double a,b,x1=(double)poligon[j].x,y1=(double)poligon[j].y,x2=(double)poligon[j+1].x, y2=(double)poligon[j+1].y;
            
            if (x1!=x2) { 
                        a=(y1-y2)/(x1-x2); b=y1-a*x1;
                        double fx=a*x+b;
                        if ( (( (fx>=y)&&(x<=x1)&&(x2>=x1) ) || ( (fx<=y)&&(x<=x1)&&(x1>=x2) ) ) &&((y1<y&&y2>=y) || (y1>y&&y2<=y)) ) ++nrm;
                         }
            else if ( (x1>x)&&((y1<y&&y2>=y) || (y1>y&&y2<=y)) ) ++nrm;
            }
            
        if (nrm%2==1) ++sol;
        
        }
    
    fout<<sol<<"\n";
    
 return(0);   
}