#include<stdio.h>
#include<iostream>
using namespace std;
int main()
{
freopen("in2.txt","r",stdin);
freopen("wo-keyan.txt","w",stdout);
double a,b,c,d,e,f,g;
for(int i=1;i<=12;i++)
{
cin>>a>>b>>c>>d>>e>>f>>g;
cout<<i<<" "<<(c/d*e*f+g-(a+c)*b*15)/(a+c)<<endl;
// printf("%1f\n",h);
}
return 0;
}