using System;

public class Program

{

    public static void Main()

    {

        string atobFlags = Console.ReadLine();

        string first = Console.ReadLine();

        string second = Console.ReadLine();

        //string btoaFlags = "";

        //for(int i = atobFlags.Length - 1; i >= 0; i--)

        //{

        //  btoaFlags += atobFlags[i].ToString();

        //}

        //Console.WriteLine(btoaFlags);

        bool canSee1 = CanSee(atobFlags, first, second);

        bool canSee2 = CanSeeReversed(atobFlags, first, second);

        if(canSee1 == true && canSee2 == true)

        {

            Console.WriteLine("both");

        }

        else if(canSee1 == true)

        {

            Console.WriteLine("forward");

        }

        else if(canSee2 == true)

        {

            Console.WriteLine("backward");

        }

        else

        {

            Console.WriteLine("fantasy");

        }

    }

    public static bool CanSee(string flags, string first, string second)

    {   

        int indexFirstStart = flags.IndexOf(first);

        //Console.WriteLine(indexFirstStart);

        if(indexFirstStart > -1)

        {

            int indexFirstEnd = indexFirstStart + first.Length;

            int indexSecondStart = flags.IndexOf(second, indexFirstEnd) + indexFirstEnd;

            //Console.WriteLine(indexFirstEnd);

            //Console.WriteLine(indexSecondStart);

            if(indexSecondStart > indexFirstEnd)

            {

                return true;

            }

        }

        return false;

    }

    public static bool CanSeeReversed(string flags, string first, string second)

    {

        for(int i = flags.Length - 1; i >= 0; i--)

        {

            int k = i;

            bool equal = true;

            for(int j = 0; j < first.Length; j++)

            {

                if(k < 0)

                {

                    equal = false;

                    break;

                }

                if(flags[k] == first[j])

                {

                    k--;

                }

                else

                {

                    equal = false;

                    break;

                }

            }

            Console.WriteLine("i = " + i + " " + "k = " + k + " " + "equal = " + equal);

            if(equal == true)

            {   

                if(k < 0)

                {

                    equal = false;

                    break;

                }

                while(true)

                {

                    for(int j = 0; j < second.Length; j++)

                    {

                        if(k < 0)

                        {

                            equal = false;

                            break;

                        }

                        if(flags[k] == second[j])

                        {

                            k--;

                        }

                        else

                        {

                            k--;

                            //equal = false;

                            break;

                        }

                    }

                }

                Console.WriteLine("k = " + k + " " + "equal = " + equal);

                if(equal == true)

                {

                    return true;

                }

            }

        }

        return false;

    }

}