#include <stdio.h>

int main()
{
    FILE* fin = fopen("poligon.in", "r");
    FILE* fout = fopen("poligon.out", "w");
    
    int N, M;
    fscanf(fin, "%d %d", &N, &M);
    
    int POL[801][2];
    int INF[60001][2];
    for (int i = 0; i < N; i++)
    {
        fscanf(fin, "%d %d", &POL[i][0], &POL[i][1]);
    }
    
    POL[N][0] = POL[0][0];
    POL[N][1] = POL[0][1];
    
    for (int i = 0; i < M; i++)
    {
        fscanf(fin, "%d %d", &INF[i][0], &INF[i][1]);
    }
    
    int valid = 0;
    for (int i = 0; i < M; i++)
    {
        int ct = 0;
        for (int j = 0; j < N; j++)
        {
            if (POL[j][0] > INF[i][0] && POL[j+1][0] > INF[i][0])
            {
                           if ((POL[j][1] > INF[i][1] && POL[j+1][1] < INF[i][1]) || (POL[j][1] < INF[i][1] && POL[j+1][1] > INF[i][1]))
                           {
                                          ct++;                                       
                           }
            }
            else
            {
                if ((POL[j][0] > INF[i][0] && POL[j+1][0] < INF[i][0]) || (POL[j][0] < INF[i][0] && POL[j+1][0] > INF[i][0]))
                {
                           if ((POL[j][1] > INF[i][1] && POL[j+1][1] < INF[i][1]) || (POL[j][1] < INF[i][1] && POL[j+1][1] > INF[i][1]))
                           {
                                          ct++;                                       
                           }
                }
            }
        }
        
        if (ct % 2 == 0)
        {
               valid++;
        }
    }
    
    fprintf(fout, "%d", valid);
    fclose(fin);
    fclose(fout);
    
    return 0;
}