#include<stdio.h>
double ab(double v)
{
    if( v >= 0 ) return v;
    return -v;
}
int main(void)
{
	FILE *inn = fopen("./bbs/prob/199/input.txt", "r");
	FILE *in = fopen("./bbs/prob/199/output.txt", "r");
    int n, i, j, x, y, min;
    double sol, sol2;
    fscanf(inn,"%d",&n);
    for(i=0;i<n;i++) fscanf(inn,"%d%d",&x,&y);
    fscanf(inn,"%lf", &sol);
    fscanf(in,"%lf",&sol2);
    if( ab(sol-sol2) < 0.001 ) printf("1");
    else printf("0");
    return 0;
}