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

namespace _03_Point_on_Segment
{
    class Program
    {
        static void Main(string[] args)
        {
            var first = double.Parse(Console.ReadLine());

            var second = double.Parse(Console.ReadLine());

            var point = double.Parse(Console.ReadLine());



            var middle = (first + second) / 2; // намира средната стойност  в интервала между first и second числото на абцисната ос x.

            // обратна абцица

            if (first >= point && point >= second)
            {
                if (middle > point)
                {
                    var distance = point - second;
                    Console.WriteLine("in {0}", distance);
                }
                else if (point > middle)
                {
                    var distance = first - point;
                    Console.WriteLine("in {0}", distance);
                }







            }

            else
            {

                if (point > first)
                {
                    var distance = point - first;
                    Console.WriteLine("out {0}", distance);
                }

                else if (second > point)
                {
                    var distance = second - point;
                    Console.WriteLine("out {0}", distance);
                }


            }

            // край


            // права абциса

            if (first <= point && point <= second)
            {
                if (point < middle)
                {
                    var distance = point - first;
                    Console.WriteLine("in {0}", distance);
                }
                else if (point > middle)
                {
                    var distance = second - point;
                    Console.WriteLine("in {0}", distance);
                }

            }

            else
            {

                if (point > second)
                {
                    var distance = point - second;
                    Console.WriteLine("out {0}", distance);
                }

                else if (first > point)
                {
                    var distance = first - point;
                    Console.WriteLine("out {0}", distance);
                }


            }

            // край


            //   */

        }
    }
}