using System;
using System.Collections.Generic;
using System.Linq;
using static System.Console;
using static System.Math;

class MainClass : Scanner
{
    static void Main()
    {
        var (H, W, K) = ReadTuple<int,int,int>();
        var dp = new long[H+1][];
        for (int i = 0; i < H+1; i++)
        {
            dp[i] = new long[W];
        }
        dp[0][0] = 1;

        if (W == 1) { WriteLine(1);return; }
        for (int i = 0; i < H; i++)
        {
            for (int j = 0; j < (1<<(W-1)); j++)
            {
                bool frag = true;
                for (int k = 0; k < W-2; k++)
                {
                    if ((j & (1 << k)) > 0 && (j & (1 << (k + 1))) > 0)
                        frag = false;
                }
                if (!frag) continue;

                for (int k = 0; k < W; k++)
                {
                    long last = dp[i][k] % 1000000007;
                    if (k == 0)
                    {
                        if ((j & (1 << k)) > 0) dp[i + 1][k + 1]+=last;
                        else dp[i + 1][k]+=last;
                    }
                    else if (k == W - 1)
                    {
                        if ((j & (1 << (k - 1))) > 0) dp[i + 1][k - 1] += last;
                        else dp[i + 1][k] += last;
                    }
                    else
                    {
                        if ((j & (1 << k)) > 0) dp[i + 1][k + 1] += last;
                        else if ((j & (1 << (k - 1))) > 0) dp[i + 1][k - 1] += last;
                        else dp[i + 1][k] += last;
                    }
                }
            }
        }
        WriteLine(dp[H][K-1]%1000000007);
    }
}



class Scanner
{
    public static string RString() => Console.ReadLine();
    public static int RInt() => ReadTuple<int>();
    public static long RLong() => ReadTuple<long>();
    public static double RDouble() => ReadTuple<double>();

    public static string[] RStrings() => Console.ReadLine().Split();
    public static int[] RInts() => Array.ConvertAll(Console.ReadLine().Split(), int.Parse);
    public static long[] RLongs() => Array.ConvertAll(Console.ReadLine().Split(), long.Parse);
    public static double[] RDoubles() => Array.ConvertAll(Console.ReadLine().Split(), double.Parse);
    public static int[] RInts(Func<string, int> func) => Console.ReadLine().Split().Select(func).ToArray();
    public static long[] RLongs(Func<string, long> func) => Console.ReadLine().Split().Select(func).ToArray();
    public static double[] RDoubles(Func<string, double> func) => Console.ReadLine().Split().Select(func).ToArray();
    //public static string[] RStrings(Func<string, string> func) => Console.ReadLine().Split().Select(func).ToArray();

    public static T1 ReadTuple<T1>()
    {
        var r = RString();
        var r1 = (T1)Convert.ChangeType(r, typeof(T1));
        return r1;
    }
    public static (T1, T2) ReadTuple<T1, T2>()
    {
        var r = RStrings();
        var r1 = (T1)Convert.ChangeType(r[0], typeof(T1));
        var r2 = (T2)Convert.ChangeType(r[1], typeof(T2));
        return (r1, r2);
    }
    public static (T1, T2, T3) ReadTuple<T1, T2, T3>()
    {
        var r = RStrings();
        var r1 = (T1)Convert.ChangeType(r[0], typeof(T1));
        var r2 = (T2)Convert.ChangeType(r[1], typeof(T2));
        var r3 = (T3)Convert.ChangeType(r[2], typeof(T3));
        return (r1, r2, r3);
    }
    public static (T1, T2, T3, T4) ReadTuple<T1, T2, T3, T4>()
    {
        var r = RStrings();
        var r1 = (T1)Convert.ChangeType(r[0], typeof(T1));
        var r2 = (T2)Convert.ChangeType(r[1], typeof(T2));
        var r3 = (T3)Convert.ChangeType(r[2], typeof(T3));
        var r4 = (T4)Convert.ChangeType(r[3], typeof(T4));
        return (r1, r2, r3, r4);
    }
}


Measured memory_bytes: 27460