using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace _1.Problem_FighterAttack
{
    class Program
    {
        static void Main()
        {
            int Px1 = int.Parse(Console.ReadLine());
            int Py1 = int.Parse(Console.ReadLine());
            int Px2 = int.Parse(Console.ReadLine());
            int Py2 = int.Parse(Console.ReadLine());
            int Fx = int.Parse(Console.ReadLine());
            int Fy = int.Parse(Console.ReadLine());
            int D = int.Parse(Console.ReadLine());
            double damage = 0;
            int newFx = Fx + D;

            //100% hit
            if ((newFx <= Math.Max(Px1, Px2) && newFx >= Math.Min(Px1, Px2) && Fy <= Math.Max(Py1, Py2) && Fy >= Math.Min(Py1, Py2)))
            {
                damage = damage + 1;
            }

            //Up 50% hit
            if ((newFx <= Math.Max(Px1, Px2) && newFx >= Math.Min(Px1, Px2) && Fy + 1 <= Math.Max(Py1, Py2) && Fy + 1 >= Math.Min(Py1, Py2)))
            {
                damage = damage + 0.5;
            }

            //Down 50% hit
            if ((newFx <= Math.Max(Px1, Px2) && newFx >= Math.Min(Px1, Px2) && Fy - 1 <= Math.Max(Py1, Py2) && Fy - 1 >= Math.Min(Py1, Py2)))
            {
                damage = damage + 0.5;
            }

            //Front 75% hit
            if ((newFx + 1 <= Math.Max(Px1, Px2) && newFx + 1 >= Math.Min(Px1, Px2) && Fy <= Math.Max(Py1, Py2) && Fy >= Math.Min(Py1, Py2)))
            {
                damage = damage + 0.75;
            }
            Console.WriteLine("{0:0%}", damage);
        }
    }
}