#include <iostream>
#include <fstream>
#include <cstdio>
#include <string>
#include <vector>
#include <algorithm>

using namespace std;

ifstream in("drink.in");

int main()
{
	while (1)
	{
		double ice, water, t_ice, t_water;
		in >> water >> ice >> t_water >> t_ice;
		double total = water + ice;
		if (water + ice == 0)
			break;
		double energy = water * t_water * 4.19 + ice * t_ice * 2.09 - ice * 335.0;
		double t;
		if (energy > 0)
		{
			t = energy / 4.19 / total;
			water = total;
			ice = 0;
		}
		else if (energy < -335.0 * total)
		{
			ice = total;
			water = 0;
			energy += 335.0 * total;
			t = energy / 2.09 / total;
		}
		else
		{
			t = 0;
			ice = -energy / 335.0;
			water = total - ice;
		}
		printf("%.1f g of ice and %.1f g of water at %.1f C\n", ice, water, t);
	}
	return 0;
}