#include <iostream>
#include <cmath>
using namespace std;
double f(int a, int b){
	// (a+b)Ca / 2^(a+b)
	double z = 1;
	a += b;
	b = min(b,a-b);
	for(int i=0; i<b; i++){
		z *= a-i;
		z /= i+1;
		z /= 4;
	}
	return z/pow(2,a-2*b);
}
 
double f(int l, int d, int h){
	// ldh == urw
	// (sum for all r 0 -> x-1) (l+d-2)C(d+r)
	// (divided by )	2^(l+d-2)
	// (where )	x = min(h-d,l-1)
	double ans = 0;
	h = min(h-d,l-1);
	if(h<=0)	return ans;
	double x = f(d,l-2);
	ans += x;
	double c = 0;	// running error
	for(int i=1; i<h; i++){
		x *= l-1-i;
		x /= d+i;
		// ans += x;	// following piece of code does the same, but with error correction
		double t = ans + x;
		if(abs(ans)>abs(x))	c += (ans-t) + x;
		else	c += (x-t) + ans;
		ans = t;
	}
	return ans+c;
}
 
int main() {
	int t,w,h,l,u,r,d;
	double x;
	cin>>t;
	for(int i=1; i<=t; i++){
		cin>>w>>h>>l>>u>>r>>d;
		x = f(l,d,h) + f(u,r,w);
		cout<<"Case #"<<i<<": "<<x<<endl;
	}
	return 0;
}

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4
3 3 2 2 2 2
5 3 1 2 4 2
1 10 1 3 1 5
6 4 1 3 3 4