# -*- coding: utf-8 -*-
import sys
import math
import os
import itertools
import string
import heapq
import _collections
from collections import Counter
from collections import defaultdict
from collections import deque
from functools import lru_cache
import bisect
import re
import queue
import copy
import decimal


class Scanner():
    @staticmethod
    def int():
        return int(sys.stdin.readline().rstrip())

    @staticmethod
    def string():
        return sys.stdin.readline().rstrip()

    @staticmethod
    def map_int():
        return [int(x) for x in Scanner.string().split()]

    @staticmethod
    def string_list(n):
        return [Scanner.string() for i in range(n)]

    @staticmethod
    def int_list_list(n):
        return [Scanner.map_int() for i in range(n)]

    @staticmethod
    def int_cols_list(n):
        return [Scanner.int() for i in range(n)]


class Math():
    @staticmethod
    def gcd(a, b):
        if b == 0:
            return a
        return Math.gcd(b, a % b)

    @staticmethod
    def lcm(a, b):
        return (a * b) // Math.gcd(a, b)

    @staticmethod
    def divisor(n):
        lower, upper = [], []
        i = 1
        while i * i <= n:
            if n % i == 0:
                lower.append(i)
                if i != n // i:
                    upper.append(n // i)
            i += 1
        return lower + upper[::-1]

    @staticmethod
    def round_up(a, b):
        return -(-a // b)

    @staticmethod
    def is_prime(n):
        if n < 2:
            return False
        if n == 2:
            return True
        if n % 2 == 0:
            return False
        d = int(n ** 0.5) + 1
        for i in range(3, d + 1, 2):
            if n % i == 0:
                return False
        return True

    @staticmethod
    def fact(N):
        res = {}
        tmp = N
        for i in range(2, int(N ** 0.5 + 1) + 1):
            cnt = 0
            while tmp % i == 0:
                cnt += 1
                tmp //= i
            if cnt > 0:
                res[i] = cnt
        if tmp != 1:
            res[tmp] = 1
        if res == {}:
            res[N] = 1
        return res


def pop_count(x):
    x = x - ((x >> 1) & 0x5555555555555555)
    x = (x & 0x3333333333333333) + ((x >> 2) & 0x3333333333333333)
    x = (x + (x >> 4)) & 0x0f0f0f0f0f0f0f0f
    x = x + (x >> 8)
    x = x + (x >> 16)
    x = x + (x >> 32)
    return x & 0x0000007f


def solve():
    H, W, K = Scanner.map_int()
    S = [[0 for _ in range(W)] for _ in range(H)]
    for h in range(H):
        s = Scanner.string()
        for w in range(W):
            if s[w] == '#':
                S[h][w] = 1
    ans = 0
    for w in range(1 << W):
        for h in range(1 << H):
            field = copy.deepcopy(S)
            for i in range(W):
                if w >> i & 1:
                    for u in range(H):
                        field[u][i] = 0
            for i in range(H):
                if h >> i & 1:
                    for v in range(W):
                        field[i][v] = 0
            cnt = 0
            for u in range(H):
                for v in range(W):
                    if field[u][v] == 1:
                        cnt += 1
            if cnt == K:
                ans += 1
    print(ans)


def main():
    # sys.setrecursionlimit(1000000)
    # sys.stdin = open("sample.txt")
    # T = Scanner.int()
    # for _ in range(T):
    #     solve()
    # print('YNeos'[not solve()::2])
    solve()


if __name__ == "__main__":
    main()


Measured memory_bytes: 10816