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

namespace ABC173
{
    using static Ex;
    public class Solve
    {
        public static void Main(string[] args)
        {
            new ABC_C();
        }
    }
    public class ABC_A
    {
        public ABC_A()
        {
            var n = ReadInt;
            if ((n % 1000) == 0)
            {
                0.Cw();
                return;
            }
            (1000 - (n % 1000)).Cw();
        }
    }
    public class ABC_B
    {
        public ABC_B()
        {
            var n = ReadInt;
            var dict = new Dictionary<string, long>();
            dict["AC"] = 0;
            dict["WA"] = 0;
            dict["TLE"] = 0;
            dict["RE"] = 0;
            for (int i = 0; i < n; i++)
            {
                var s = Read;
                dict[s]++;
            }
            foreach (var v in dict)
            {
                $"{v.Key} x {v.Value}".Cw();
            }
        }
    }
    public class ABC_C
    {
        /// <summary>
        /// H 行 W 列
        /// 上から i 行目、左から j 列目 ( 1 ≤ i ≤ H , 1 ≤ j ≤ W ) のマスの色は文字 c i , j
        /// c i , j が . のとき白
        /// # のとき黒
        /// </summary>
        int h, w, k;
        long ans;
        bool[][] arr;
        bool[] redh, redw;
        public ABC_C()
        {
            (h, w, k) = ReadIntArray().ToTpl3();

            arr = new bool[h][];
            redh = new bool[h];
            redw = new bool[w];

            for (int i = 0; i < h; i++)
            {
                arr[i] = Read.Select(v => v == '#').ToArray();
            }

            for (int bit = 0; bit < 1 << h; bit++)
            {
                for (int i = 0; i < h; i++)
                {
                    redh[i] = ((bit >> i & 1) == 1);
                }

                for (int s = 0; s < 1 << w; s++)
                {
                    for (int i = 0; i < w; i++)
                    {
                        redw[i] = ((s >> i & 1) == 1);
                    }
                    if (Check()) ans++;
                }
            }
            ans.Cw();
        }

        bool Check()
        {
            long cou = 0;
            for (int i = 0; i < h; i++)
            {
                for (int j = 0; j < w; j++)
                {
                    if (arr[i][j] && (!redh[i]) && (!redw[j])) cou++;
                    if (cou > k) return false;
                }
            }
            return (cou == k);
        }
    }

    public static class Ex
    {
        public static void Cw(this object s) { Console.WriteLine(s); }



        public static bool Mins<T>(ref T a, T b) where T : IComparable<T> { if (a.CompareTo(b) > 0) { a = b; return true; } return false; }
        public static bool Maxs<T>(ref T a, T b) where T : IComparable<T> { if (a.CompareTo(b) < 0) { a = b; return true; } return false; }
        public static void Swap<T>(ref T a, ref T b) { var t = b; b = a; a = t; }
        public static void Swap<T>(List<T> list, int i, int j) { T tmp = list[j]; list[j] = list[i]; list[i] = tmp; }

        public static long Lcm(int x, int y) { return x / Gcd(x, y) * y; }
        public static long Gcd(long m, long n) { if (n == 0) return m; return Gcd(n, m % n); }
        public static List<string> FastSort(this List<string> s) { s.Sort(StringComparer.Ordinal); return s.ToList(); }
        public static void yesno(this bool b) { (b ? "yes" : "no").Cw(); }
        public static void YesNo(this bool b) { (b ? "Yes" : "No").Cw(); }
        public static void YESNO(this bool b) { (b ? "YES" : "NO").Cw(); }

        public static string Read { get { return Console.ReadLine().Trim(); } }
        public static int ReadInt { get { return int.Parse(Read); } }
        public static long ReadLong { get { return long.Parse(Read); } }
        public static double ReadDouble { get { return double.Parse(Read); } }
        public static string[] ReadArray() { return Read.Split(' '); }
        public static int[] ReadIntArray() { return Read.Split(' ').Select(int.Parse).ToArray(); }
        public static long[] ReadLongArray() { return Read.Split(' ').Select(long.Parse).ToArray(); }
        public static string[] ReadArray(long N) { var v = new string[N]; for (long i = 0; i < N; ++i) v[i] = Read; return v; }
        public static int[] ReadIntArray(long N) { var v = new int[N]; for (long i = 0; i < N; ++i) v[i] = ReadInt; return v; }
        public static long[] ReadLongArray(long N) { var v = new long[N]; for (long i = 0; i < N; ++i) v[i] = ReadLong; return v; }

        public static (T, T) ToTpl2<T>(this T[] v) { return (v[0], v[1]); }
        public static (T, T, T) ToTpl3<T>(this T[] v) { return (v[0], v[1], v[2]); }
        public static (T, T, T, T) ToTpl4<T>(this T[] v) { return (v[0], v[1], v[2], v[3]); }
        public static (T, T, T, T, T) ToTpl5<T>(this T[] v) { return (v[0], v[1], v[2], v[3], v[4]); }


        public static int LowerBound<T>(T[] a, T v)
        {
            return LowerBound(a, v, Comparer<T>.Default);
        }

        public static int LowerBound<T>(T[] a, T v, Comparer<T> cmp)
        {
            var l = 0;
            var r = a.Length - 1;
            while (l <= r)
            {
                var mid = l + (r - l) / 2;
                var res = cmp.Compare(a[mid], v);
                if (res == -1) l = mid + 1;
                else r = mid - 1;
            }
            return l;
        }

        /// <summary>
        /// lower_boundは、探索したいkey以上のイテレータを返す
        /// upper_boundは、探索したいkeyより大きいイテレータを返す
        public static int UpperBound<T>(T[] a, T v)
        {
            return UpperBound(a, v, Comparer<T>.Default);
        }

        public static int UpperBound<T>(T[] a, T v, Comparer<T> cmp)
        {
            var l = 0;
            var r = a.Length - 1;
            while (l <= r)
            {
                var mid = l + (r - l) / 2;
                var res = cmp.Compare(a[mid], v);
                if (res <= 0) l = mid + 1;
                else r = mid - 1;
            }
            return l;
        }
    }
}


Measured memory_bytes: 28272