#include <stdio.h>
int minY, minX, maxY, maxX;
struct point { 
  int  X, Y;
};
point pole[20000], NewPoint, S;
int PocBodu, pom, pom1, pom2;
int ok, ok2;

int main() {
  scanf("%d",&pom1);
  while (pom1 != 0) {
    minY = minX = 10000000;
    maxY = maxX = -10000000;
    ok = 1;
    for (pom = 0; pom < pom1; pom++) {
      scanf("%d %d", &pole[pom].X, &pole[pom].Y);
      pole[pom].X *= 10;
      pole[pom].Y *= 10;
      if (pole[pom].X < minX) minX = pole[pom].X;
      if (pole[pom].X > maxX) maxX = pole[pom].X;
      if (pole[pom].Y < minY) minY = pole[pom].Y;
      if (pole[pom].Y > maxY) maxY = pole[pom].Y;
    }
//    printf("minX: %d , minY: %d, maxX: %d, maxY: %d\n",minX,minY,maxX,maxY);
    S.X = (maxX - minX) / 2 + minX;
    S.Y = (maxY - minY) / 2 + minY;
    PocBodu = pom1;
    pom = 0;
    while (PocBodu > pom) {
      if ((S.X != pole[pom].X) || (S.Y != pole[pom].Y)) {
        NewPoint.X = pole[pom].X + (S.X - pole[pom].X)*2;
	NewPoint.Y = pole[pom].Y + (S.Y - pole[pom].Y)*2;
	ok2 = 0;
	pom1 = pom + 1;
	while (pom1 < PocBodu) {
	  if ((pole[pom1].X == NewPoint.X) && (pole[pom1].Y == NewPoint.Y)) {
	    pole[pom1] = pole[--PocBodu];
	    pom1 = PocBodu;
	    ok2 = 1;
	  }
	  pom1++;
	}
	if (ok2 == 0) { ok = 0; pom = PocBodu; }
      }
      pom++;
    }  
    if (ok == 0) printf("This is a dangerous situation!\n");
    else printf("V.I.P. should stay at (%d.%d,%d.%d).\n", S.X/10, S.X - ((S.X/10)*10), S.Y/10, S.Y - ((S.Y/10)*10));
  scanf("%d",&pom1);

  }
  return 0;
}