import java.text.*;
import java.util.*;
class Combat
{

    public static void main(String[] args)
    {

        int athp = Integer.parseInt(args[0]);
        int atfp = Integer.parseInt(args[1]);
        int dfhp = Integer.parseInt(args[2]);
        int dffp = Integer.parseInt(args[3]);

        int attwins = (dfhp*10)/atfp;
        if ((dfhp*10)%atfp != 0) attwins++;
        int defwins = (athp*10)/dffp;
        if ((athp*10)%dffp != 0) defwins++;
        int minrounds = attwins;
        int maxrounds = attwins+defwins-1;
        int[][] choose = new int[maxrounds][];
        for(int i=0; i<maxrounds; i++)
        {
            choose[i]=new int[i+1];
            choose[i][0]=1;
            choose[i][i]=1;
            for(int j=1; j<i; j++)
            {
                int t = choose[i][j] = choose[i-1][j-1]+choose[i-1][j];
            }
        }
        DecimalFormat format = new DecimalFormat("0.000");
        DecimalFormat format2 = new DecimalFormat("000");
        DecimalFormat format3 = new DecimalFormat("00");
        int[] defs = new int[120];
        int ndef = 0;
        for (int df = 1; df < 4; df++)
        {
            for(int mod200 = 0; mod200<3; mod200++)
            for(int mod100 = 0; mod100<2; mod100++)
            for(int mod50 = 0; mod50<5; mod50++)
            {
                int def = df*8;
                for(int i=0; i<mod50; i++) def=(3*def)/2;
                for(int i=0; i<mod100; i++) def=2*def;
                for(int i=0; i<mod200; i++) def=3*def;
                {
                    int i;
                    for(i=0; i<ndef; i++)
                        if (defs[i]==def) break;
                    if (i==ndef) defs[ndef++]=def;
                }
            }
        }
        Arrays.sort(defs,0,ndef);
        int last=0;
        int[] atts = new int[] { 8,12,16,24,32,36,40,48,60 };
        System.out.print("_______");
        for(int i=0; i<atts.length; i++)
            System.out.print("at:"+format3.format(atts[i])+"_");
        System.out.println();
        for(int d = 0; d<ndef; d++)
        {
            int def = defs[d];
            System.out.print("df="+format2.format(def)+"_");
            for(int a = 0; a<atts.length; a++)
            {
                int att=atts[a];
                double tot=0d;
                double p;
                if (def >= att)
                    p= ((double)(att-1)) / (double)(2*def);
                else p= 1.0d - (((double)(def+1)) / (double)(2*att));
                double q = 1.0-p;
                for(int r=minrounds; r<=maxrounds; r++)
                {
                    double t =(double)choose[r-1][attwins-1];
                    int numdfwins = r-attwins;
                    for(int j=0; j<numdfwins; j++)
                        t*=q;
                    tot+=t;
                }
                for(int i=0; i<attwins; i++)
                    tot*=p;
                System.out.print(format.format(tot)+" ");
                if ((a==(atts.length-1)) && tot<.001) { last = d; d=ndef; }
            }
            System.out.println();
        }
        System.out.println("-------Expected damage after win-------------");
        System.out.print("_______");
        for(int i=0; i<atts.length; i++)
            System.out.print("at:"+format3.format(atts[i])+"_");
        System.out.println();
        for(int d = 0; d<(last+1); d++)
        {
            int def = defs[d];
            System.out.print("df="+format2.format(def)+"_");
            for(int a = 0; a<atts.length; a++)
            {
                int att=atts[a];
                double tot=0d;
                double exp=0d;
                double p;
                if (def >= att)
                    p= ((double)(att-1)) / (double)(2*def);
                else p= 1.0d - (((double)(def+1)) / (double)(2*att));
                double q = 1.0-p;
                for(int r=minrounds; r<=maxrounds; r++)
                {
                    double t =(double)choose[r-1][attwins-1];
                    int numdfwins = r-attwins;
                    for(int j=0; j<numdfwins; j++)
                        t*=q;
                    tot+=t;
                    exp+=(t*numdfwins);
                }
                exp = exp/tot;
                System.out.print(format.format(exp)+" ");
            }
            System.out.println();
        }
    }
}