#include<iostream>
#include<cstdio>
using namespace std;
int n,sx,sy,ex,ey,sum=1;
bool f=0;
int dx[6000],dy[6000];
bool x[6000]={},y[6000]={};
int main()
{
	freopen("loverfinding.in","r",stdin);
	freopen("loverfinding.out","w",stdout);
	scanf("%d%d%d%d%d",&n,&sx,&sy,&ex,&ey);
	for(int i=1;i<=n;i++)
		scanf("%d%d",&dx[i],&dy[i]);
	sx+=2600,sy+=2600,ex+=2600,ey+=2600;
	for(int i=1;i<=n;i++)
	{
		sx+=dx[i],sy+=dy[i];
		if(x[sx]==1&&y[sy]==1)
			continue;
		else 
		x[sx]=1,y[sy]=1;
		sum++;
		if((sx==ex)&&(sy==ey))
		{
			f=1;
			printf("%d",sum);
		}
	}
	if(f==0)
		printf("SingleDogMZX");
	return 0;
}