#include<bits/stdc++.h>
using namespace std;
int main(){
double a,b,c,t,x,y;
    cin>>a>>b>>c;
    t=b*b-4*a*c;
    x=(-b+sqrt(t))/(2*a);y=(-b-sqrt(t))/(2*a);
    if(t>0)
        printf("x1=%.5lf;x2=%.5lf",min(x,y),max(x,y)); 
    if(t==0)
        printf("x1=x2=%.5lf",x);
    if(t<0)
        printf("No answer!");
    return 0;
}