/*
            //53
            int n;
            double time, max1, max2;
            Console.WriteLine("cars?");
            n = int.Parse(Console.ReadLine());
            Console.WriteLine("time?");
            time= double.Parse(Console.ReadLine());
            max1 = time;
            max2 = 0;
            for (int i=2;i<=n;i++)
            {
                Console.WriteLine("time?");
                time = double.Parse(Console.ReadLine());
                if (time > max1)
                    max1 = time;
                else if (time > max2)
                    max2=time;
            }

            Console.WriteLine("1: "+max1);
            Console.WriteLine("2: " + max2);

    */
            /*
            //49
                    string name,id;
                    double height, max;
                    Console.WriteLine("enter name");
                    name=Console.ReadLine();
                    Console.WriteLine("enter gova");
                    height= double.Parse(Console.ReadLine());
                    max = height;
                    id = name;
                    for(int i=1;i<=8;i++)
                    {
                        Console.WriteLine("enter name");
                        name = Console.ReadLine();
                        Console.WriteLine("enter gova");
                        height = double.Parse(Console.ReadLine());
                        if(height>max)
                        {
                            max = height;
                            id = name;
                        }
                    }

                    Console.WriteLine("max: "+max);
                    Console.WriteLine("name: "+name);
                    */
            /*
            //52
    int num1, num2, max,min,i,place=1;
    Console.WriteLine("enter num1");
    num1= int.Parse(Console.ReadLine());
    Console.WriteLine("enter num2");
    num2 = int.Parse(Console.ReadLine());
    max = Math.Max(num1, num2);
    min = max;
    for(i=2;i<=4;i++)
    {
        Console.WriteLine("enter num1");
        num1 = int.Parse(Console.ReadLine());
        Console.WriteLine("enter num2");
        num2 = int.Parse(Console.ReadLine());
        max = Math.Max(num1, num2);
        if (max < min)
        {
            min = max;
            place = i;
        }


    }
    Console.WriteLine("min: "+min);
    Console.WriteLine("place: "+place);

    Console.ReadLine();
    Console.ReadLine();
    Console.ReadLine();
    */
            /*
            //50
                    double num, max, maxnum;
                    int i, ;
                    Console.WriteLine("enter num");
                    num = double.Parse(Console.ReadLine());
                    max = Math.Abs(num % 1);
                    maxnum=num;
                    for(i=2;i<=3;i++)
                    {
                        Console.WriteLine("enter num");
                        num = double.Parse(Console.ReadLine());
                        if (Math.Abs(num % 1) > max)
                        {
                            maxnum=num
                            max = Math.Abs(num % 1);
                        }

                    }
                    Console.WriteLine("max is: "+max);
                    Console.WriteLine("num is: "+num);
            */

            //51
            double num , min = 0 , max = 0 ;
            Console.WriteLine("enter num");
            num = double.Parse(Console.ReadLine());
            if (num > 0)
                min = num;
            else if (num < 0)
                max = num;
            for(int i=2;i<=10;i++)
            {

            Console.WriteLine("enter num");
                num = double.Parse(Console.ReadLine());
                if(max==0&&num<0)
                    max=num;
                if(min==0&&num>0)
                    min=num;
                if (num > max && num < 0)
                    max = num;
                else if (num < min && num > 0)
                    min = num;




            }
            Console.WriteLine("lowest positive: "+min);
            Console.WriteLine("highest negative: "+max);