#include <iostream>
using namespace std;
double f(double x) {
 return (x-2)*(x-2)+5;
}
double f1(double x) {
return 2*(x-2);
}
int main() {
  double a,b,eps,c,xmin;
  cin>>a>>b>>eps>>xmin;
  int k=0;
  while(abs(b-a)>eps){
  c=(b+a)/2;
  
  if(f1==0) {
  cout<<"exact min"<<c;
  }
  
  if(f1>0)  {
  b=c;
  }
  
  if(f1<0)  {
  a=c;
  }
  k++;
  

  }
  xmin=(b+a)/2; 
  cout<<xmin<<" "<<k;
 
  
return 0;
}