#include<bits/stdc++.h>
using namespace std;
int main()
{
    double a,b,c,x1,x2;
    cin>>a>>b>>c;
    if ((b*b-4*a*c)<0)
    {
        cout<<"No,answer!";
    }
    else{
        x1 = (-b+sqrt(pow(b,2)-4*a*c))/(2*a);
        x2 = (-b-sqrt(pow(b,2)-4*a*c))/(2*a);
        if ((b*b-4*a*c)==0)
        {
            cout<<"x1=x2="<<fixed<<setprecision(5)<<x1;
        }
        else if((b*b-4*a*c)>0){
            if(x1 < x2)
        {
            cout<<"x1="<<fixed<<setprecision(5)<<(-b+sqrt(pow(b,2)-4*a*c))/(2*a)<<';'<<"x2="<<(-b-sqrt(pow(b,2)-4*a*c))/(2*a);
        }else{
            cout<<"x1="<<fixed<<setprecision(5)<<(-b-sqrt(pow(b,2)-4*a*c))/(2*a)<<';'<<"x2="<<(-b+sqrt(pow(b,2)-4*a*c))/(2*a);
        
        }
        }

    }
    return 0;
}