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package dungeonsanddragons;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.RoundingMode;
import java.text.DecimalFormat;
import java.util.Arrays;
import java.util.StringTokenizer;

/**
 *
 * @author Aaron Zhou
 */
public class Dungeonsanddragons {

    /**
     * @param args the command line arguments
     */
    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    static StringTokenizer st;
    static double[][] memo;

    public static double calculate(int hp, int atk, int def, double ac, int hpp, int atkp, int defp, double acp, int counter) {
        double out = 0;
        if (hp <= 0) {
            return 1;

        } else if (hpp <= 0) {
            return 0;

        }

        if (counter == 15) {
            return 0.5;

        }

        int trueatk = 0;
        int trueatke = 0;

        trueatk = atkp - def;
        if (trueatk < 0) {
            trueatk = 0;
        }
        trueatke = atk - defp;
        if (trueatke < 0) {
            trueatke = 0;
        }
        if (memo[hp][hpp] == -1.0) {
            out += ((((acp / 20.0) * ((20.0 - ac) / 20.0)) * calculate((hp - trueatk), atk, def, ac, hpp, atkp, defp, acp, counter + 1))
                    + ((((20.0 - acp) / 20.0) * ((20.0 - ac) / 20.0)) * calculate(hp, atk, def, ac, hpp, atkp, defp, acp, counter + 1))
                    + ((((20.0 - acp) / 20.0) * (ac / 20.0)) * calculate(hp, atk, def, ac, hpp - trueatke, atkp, defp, acp, counter + 1))
                    + (((acp / 20.0) * (ac / 20.0)) * calculate(hp - trueatk, atk, def, ac, hpp - trueatke, atkp, defp, acp, counter + 1)));
            memo[hp][hpp] = out;
        } else {
            out = memo[hp][hpp];
        }

        return out;
    }

    public static void main(String[] args) throws IOException {

        int hpplayer = readInt();
        int atkplayer = readInt();
        int defplayer = readInt();
        int acplayer = readInt();
        int numenemies = readInt();
        for (int i = 0; i < numenemies; i++) {
            int hp = readInt();
            int atk = readInt();
            int def = readInt();
            double ac = readDouble();
            memo = new double[(int) hp + 1][(int) hpplayer + 1];
            for (int k = 0; k < hp + 1; k++) {
                for (int j = 0; j < hpplayer + 1; j++) {
                    memo[hp][hpplayer] = -1;
                }
            }
            double chances = calculate(hp, atk, def, ac, hpplayer, atkplayer, defplayer, acplayer, 0);
            if (chances == 0) {
                System.out.println("Get outta there!");
            } else {
                DecimalFormat df = new DecimalFormat("0.00000");
                df.setRoundingMode(RoundingMode.CEILING);

                System.out.println(df.format(chances));
            }
        }

    }

    static String next() throws IOException {
        while (st == null || !st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine().trim());
        }
        return st.nextToken();
    }

    static double readLong() throws IOException {
        return Long.parseLong(next());
    }

    static int readInt() throws IOException {
        return Integer.parseInt(next());
    }

    static double readDouble() throws IOException {
        return Double.parseDouble(next());
    }

    static char readCharacter() throws IOException {
        return next().charAt(0);
    }

    static String readLine() throws IOException {
        return br.readLine().trim();
    }
}