#include <bits/stdc++.h>
#include <algorithm>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> l_l;
typedef pair<int, int> i_i;
typedef vector<ll> vl;
typedef vector<int> vi;
typedef vector<char> vec;
typedef vector<bool> veb;
typedef vector<string> ves;
typedef vector<vector<ll>> vvl;
typedef vector<vector<int>> vvi;
typedef vector<vector<char>> vvec;
typedef vector<vector<bool>> vveb;
typedef vector<vector<string>> vves;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rep1(i,n) for(int i=1;i<(int)(n);i++)
#define rep2(i,n) for(int i=2;i<(int)(n);i++)
#define repk(i,k,n) for(int i=k;i<(int)(n);i++)
#define rev(v) reverse(v.begin(), v.end())
#define fs first
#define sc second
#define pb push_back
#define pp pop_back
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define maxel(a) *max_element(all(a))
#define minel(a) *min_element(all(a))
#define acc accumulate
#define EPS (1e-7)
#define INF (1e9)
#define PI (acos(-1))
#define mod (1000000007)
typedef long long int64;
//const int64 INF = 1LL << 58;
#define dame { puts("-1"); return 0;}
#define YES { cout << "YES" << endl; return 0; }
#define NO { cout << "NO" << endl; return 0; }
#define Yes { cout << "Yes" << endl; return 0; }
#define No { cout << "No" << endl; return 0; }
#define uniq(a) sort(all(a));(a).resize(unique(all(a)) - a.begin());
#define dab(v) for(auto i:v) cout << i << ' ' << endl;
#define vin(v) for (ll i = 0; i < v.size(); ++i) cin >> v[i];
#define vin2(v, w) for (ll i = 0; i < v.size(); ++i) cin >> v[i] >> w[i];
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> bool chmin(T& a, const T& b) { if (a > b) { a = b; return 1; } return 0; }
int dx[] = { 0, 0, -1, 1 };
int dy[] = { 1, -1, 0, 0 };
int gcd(int a, int b) { if (a % b == 0) { return(b); } else { return(gcd(b, a % b)); } }

int vector_finder(std::vector<int> vec, int number) {
	auto itr = std::find(vec.begin(), vec.end(), number);
	size_t index = std::distance( vec.begin(), itr );
	if (index != vec.size()) { // 発見できたとき
		return 1;
	}
	else { // 発見できなかったとき
		return 0;
	}
}

int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	//cout << fixed << setprecision(18);

	int H, W, K;
	int all_black = 0;
	cin >> H >> W >> K;
	vvi c(H, vi(W));
	rep(i, H){
		rep(j, W){
			char chr;
			cin >> chr;
			if(chr == '.') c.at(i).at(j) = 0;
			else c.at(i).at(j) = 1;
		}
	}
	int cnt = 0;
	int n = H + W;
	for (int bit = 0; bit < (1<<n); ++bit) {
        vector<int> S;
        for (int i = 0; i < n; ++i) {
            if (bit & (1<<i)) { // 列挙に i が含まれるか
                S.push_back(i);
            }
        }
		/*
        cout << bit << ": {";
        for (int i = 0; i < (int)S.size(); ++i) {
            cout << S[i] << " ";
        }
        cout << "}" << endl;
		*/
		auto temp_c = c;
		rep(i, (int)S.size()){
			if(S.at(i) < H){
				rep(j, W){
					temp_c.at(S.at(i)).at(j) = 0;
				}
			}else{
				rep(j, H){
					temp_c.at(j).at(S.at(i) - H) = 0;
				}
			}
		}
		int temp_K = 0;
		rep(i, H){
			rep(j, W){
				if(temp_c.at(i).at(j) == 1)temp_K++;
			}
		}
		//cout << H << " " << K << " " << S.at(i) << endl;
		if(temp_K == K)cnt++;
    }

	cout << cnt;
}

Measured memory_bytes: 3632