Rep

#include <bits/stdc++.h>

using namespace std;
double p,q,r,s,t,u;

bool valid(double x)
{
    return (p*exp(-x)+q*sin(x)+r*cos(x)+s*tan(x)+t*x*x+u)>0;
}

int main(){

    while(cin>>p>>q>>r>>s>>t>>u){
        if(p*exp(-1)+q*sin(1)+r*cos(1)+s*tan(1)+t+u>1e-12||p+r+u<0){
            printf("No solution\n");
            continue;
        }
        double s=0, e=1;
        while(fabs(e-s)>1e-15)
        {
            double mid=(s+e)/2;
            if(valid(mid)) s=mid;
            else e=mid;
        }
        printf("%.4f\n",s);
    }

    return 0;
}