// Solving ax^2 + bx + c = 0
#include <iostream>
#include <math.h>
using namespace std;

double a, b, c; 
double D, x1, x2;

int main()
{
  a = 1.;
  b = 3.;
  c = -4.;
  
  D = b*b-4.*a*c; // determinant
  
  if (D>=0){
    x1 = (-b + sqrt(D))/(2.*a); 
    x2 = (-b - sqrt(D))/(2.*a); 
    cout << x1 << " " << x2 << endl;
  }else{
    cout << "no solution" << endl;
  }
}