#include <bits/stdc++.h>
 
using namespace std;
 
template <typename A, typename B>
string to_string(pair<A, B> p);
template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p);
template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p);
string to_string(const string& s) {
    return '"' + s + '"';
}
string to_string(const char* s) {
    return to_string((string) s);
}
string to_string(bool b) {
    return (b ? "true" : "false");
}
string to_string(vector<bool> v) {
    bool first = true;
    string res = "{";
    for (int i = 0; i < static_cast<int>(v.size()); i++) {
        if (!first) {
            res += ", ";
        }
        first = false;
        res += to_string(v[i]);
    }
    res += "}";
    return res;
}
template <size_t N>
string to_string(bitset<N> v) {
    string res = "";
    for (size_t i = 0; i < N; i++) {
        res += static_cast<char>('0' + v[i]);
    }
    return res;
}
template <typename A>
string to_string(A v) {
    bool first = true;
    string res = "{";
    for (const auto &x : v) {
        if (!first) {
            res += ", ";
        }
        first = false;
        res += to_string(x);
    }
    res += "}";
    return res;
}
template <typename A, typename B>
string to_string(pair<A, B> p) {
    return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}
template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p) {
    return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ")";
}
template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p) {
    return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ", " + to_string(get<3>(p)) + ")";
}
void debug_out() { cerr << endl; }
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << " " << to_string(H);
    debug_out(T...);
}
template<typename T>
void read(T& val){
    cin >> val;
}
template<typename T>
void read(vector<T>& a){
    for(int i = 0; i < (int)a.size(); ++i){
      read(a[i]);
    }
}
template<typename Head, typename... Tail>
void read(Head& H, Tail&... T){
    read(H);
    read(T...);
}
#ifdef LOCAL
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif
#define vec vector
#define i64 long long
#define endl '\n'
#define sz(x) (x).size()
#define times(n) for(int i = 0; i < (n); ++i)
#define bits(x) __builtin_popcount(x)
 
int test_case_number = 1;

void print_case(){
    #ifdef LOCAL
    cout << "Case #" << test_case_number++ << ": ";
    #endif
}
void to_bin(int n){
    cout << n << "\t=\t";
    for(int i = 12; i >= 0; --i){
        if((n >> i) & 1){
            cout << "1";
        } else {
            cout << "0";
        }
    }
    cout << endl;
}
void solve(){
    int n, m, k, ans =  0;
    read(n, m, k);
    vector<string> g(n);
    read(g);
    for(int mask = 0; mask < (1 << (n + m)); ++mask){
        int count = 0;
        for(int i = 0; i < n; ++i){
            for(int j = 0; j < m; ++j){
                if((mask & (1 << i)) && (mask & (1 << (n + j))) && g[i][j] == '#'){
                    count ++;
                }
            }
        }
        if(count == k){
            ans ++;
        }
    }
    cout << ans << endl;
}
 
int main(){
        solve();
}

Measured memory_bytes: 3632