#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int main(void){

long int i,j,k,horex, horey, dolex, doley,kolko;
float stredx,stredy;
long int *pole,hej;

do{

scanf("%ld",&kolko);
if(kolko==0) break;

pole=(long int*)malloc(2*kolko*sizeof(long int));

for(i=0;i<2*kolko;i++)
   scanf("%ld",&pole[i]);

dolex=horex=pole[0];
doley=horey=pole[1];   

for(i=0;i<2*kolko;i+=2){
   if(pole[i]>horex) {horex=pole[i]; horey=pole[i+1];}
   if(pole[i]==horex&&pole[i+1]<horey) {horex=pole[i]; horey=pole[i+1];}
   
   if(pole[i]<dolex) {dolex=pole[i]; doley=pole[i+1];}
   if(pole[i]==dolex&&pole[i+1]>doley) {dolex=pole[i]; doley=pole[i+1];}     
}

stredx=((float)horex+dolex)/2;
stredy=((float)horey+doley)/2;

hej=0;
i=0;
while(i<2*kolko) {
   j=0;hej=0;
   if(pole[i]==100001) {i+=2;hej=1;continue;}
   while(j<2*kolko){
   	if(pole[j]==100001) {j+=2;continue;}
	if(((float)((float)pole[i]+pole[j])/2==(float)stredx)&& ((float)((float)pole[i+1] + pole[j+1])/2 == (float)stredy)){
	   hej=1;
	   pole[i]=pole[i+1]=pole[j]=pole[j+1]=100001;
	   break;
	}
        j+=2;
   }
if(!hej) {printf("This is a dangerous situation!\n");break;}
i+=2;
}
if(hej) printf("V.I.P. should stay at (%.1f,%.1f)\n",stredx, stredy);

} while(1);
	return 0;
}