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

#define N 49998


int main( void )
{
  double a[N],b[N], dummy, disc, should, is, min;
  long int i, j;
  for(i=0; i<N; i++) {
    scanf("%lf", &a[i]);
    scanf("%lf", &b[i]);
  }
  disc=0;
  for(i=0; i<N; i++) {
    should=1-exp(-a[i])-exp(-b[i])+exp(-a[i])*exp(-b[i]);
    is=0;
    for(j=0; j<N; j++)
      if(a[j]<=a[i] && b[j]<=b[i]) is++;
    is=is/N;
    if( fabs(should - is) > disc) disc = fabs(should-is);
  }
  min=1;
  for(i=0; i<N; i++)
    if(a[i]<min) min=a[i]; 
  printf("disc = %lf\n",disc);
  printf("min = %lf\n",min);
  return 0;
}