#include<stdio.h>
#include<stdlib.h>
int n,x0,y0,xt,yt,i,x,y,c,o,bookx[1000000],booky[1000000];
int main()
	{
	freopen("loverfinding.in","r",stdin);
	freopen("loverfinding.out","w",stdout);
	scanf("%d%d%d%d%d",&n,&x0,&y0,&xt,&yt);
	c=1;
	bookx[c]=x0;
	booky[c]=y0;
	if(x0==xt&&y0==yt)
		goto loop;
	for(i=1;i<=n;i++)
	{
		scanf("%d%d",&x,&y);
		x0=x0+x;
		y0=y0+y;
		if(x0==xt&&y0==yt)
			break;
		for(o=1;o<=c;o++)
		{
			if(x0==bookx[o]&&y0==booky[o])
				goto app;
		}
		c++;
		bookx[c]=x0;
		booky[c]=y0;
		app:;
	}
	if(x0==xt&&y0==yt)
    {
	    if(c==0)
	    {
			loop:;   
			printf("%d",c);	
        }
		else	
	       printf("%d",c+1);
	}
	else
		printf("SingleDogMZX");
    return 0;
}