#include<iostream>
#include<cstdio>
int xt,yt,t=0;
using namespace std;
void panduan(int c,int d){
	if(c==xt&&d==yt)t=1;
}
int main(){
	freopen("loverfinding.in","r",stdin);
	freopen("loverfinding.out","w",stdout);
	int m,k,n,x0,y0,ans=1;
	int a[1001]={0},b[1001]={0};
	int heng[1001]={0},zong[1001]={0};
	int zb[101][101]={0};
	scanf("%d%d%d%d%d",&n,&x0,&y0,&xt,&yt);
	for(int i=0;i<n;i++)scanf("%d%d",&a[i],&b[i]);
	for(int m=0;m<n;m++){
		x0+=a[m];
		y0+=b[m];
		heng[m]=x0,zong[m]=y0;
		zb[x0][y0]=1;
		panduan(x0,y0);
		if(t==1)break;
	}
	for(int m=0;m<n;m++){
		for(int k=0;k<n;k++)ans+=zb[m][k];
	}
	printf("%d",ans);
	if(t==0)cout<<"SingleDogMZX";
	return 0;
}