import java.io.*;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.*;



public class Main {
	static class Reader 
    { 
        final private int BUFFER_SIZE = 1 << 16; 
        private DataInputStream din; 
        private byte[] buffer; 
        private int bufferPointer, bytesRead; 
  
        public Reader() 
        { 
            din = new DataInputStream(System.in); 
            buffer = new byte[BUFFER_SIZE]; 
            bufferPointer = bytesRead = 0; 
        } 
  
        public Reader(String file_name) throws IOException 
        { 
            din = new DataInputStream(new FileInputStream(file_name)); 
            buffer = new byte[BUFFER_SIZE]; 
            bufferPointer = bytesRead = 0; 
        } 
  
        public String readLine() throws IOException 
        { 
            byte[] buf = new byte[64]; // line length 
            int cnt = 0, c; 
            while ((c = read()) != -1) 
            { 
                if (c == '\n') 
                    break; 
                buf[cnt++] = (byte) c; 
            } 
            return new String(buf, 0, cnt); 
        } 
  
        public int nextInt() throws IOException 
        { 
            int ret = 0; 
            byte c = read(); 
            while (c <= ' ') 
                c = read(); 
            boolean neg = (c == '-'); 
            if (neg) 
                c = read(); 
            do
            { 
                ret = ret * 10 + c - '0'; 
            }  while ((c = read()) >= '0' && c <= '9'); 
  
            if (neg) 
                return -ret; 
            return ret; 
        } 
  
        public long nextLong() throws IOException 
        { 
            long ret = 0; 
            byte c = read(); 
            while (c <= ' ') 
                c = read(); 
            boolean neg = (c == '-'); 
            if (neg) 
                c = read(); 
            do { 
                ret = ret * 10 + c - '0'; 
            } 
            while ((c = read()) >= '0' && c <= '9'); 
            if (neg) 
                return -ret; 
            return ret; 
        } 
  
        public double nextDouble() throws IOException 
        { 
            double ret = 0, div = 1; 
            byte c = read(); 
            while (c <= ' ') 
                c = read(); 
            boolean neg = (c == '-'); 
            if (neg) 
                c = read(); 
  
            do { 
                ret = ret * 10 + c - '0'; 
            } 
            while ((c = read()) >= '0' && c <= '9'); 
  
            if (c == '.') 
            { 
                while ((c = read()) >= '0' && c <= '9') 
                { 
                    ret += (c - '0') / (div *= 10); 
                } 
            } 
  
            if (neg) 
                return -ret; 
            return ret; 
        } 
  
        private void fillBuffer() throws IOException 
        { 
            bytesRead = din.read(buffer, bufferPointer = 0, BUFFER_SIZE); 
            if (bytesRead == -1) 
                buffer[0] = -1; 
        } 
  
        private byte read() throws IOException 
        { 
            if (bufferPointer == bytesRead) 
                fillBuffer(); 
            return buffer[bufferPointer++]; 
        } 
  
        public void close() throws IOException 
        { 
            if (din == null) 
                return; 
            din.close(); 
        } 
    }

	public static PrintWriter out = new PrintWriter (new BufferedOutputStream(System.out));
	public static Reader sc = new Reader();
 
	//static int mod = (int) (1e9+7);

	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		int k = sc.nextInt();
		char[][] s = new char[n][m];
		long cnt = 0;
		for(int i=0;i<n;++i) s[i] = sc.next().toCharArray();
		for(int r=0;r<(1<<n);++r) {
			for(int c=0;c<(1<<m);++c) {
				char[][] ch = new char[n][m];
				for(int i=0;i<n;++i) for(int j=0;j<m;++j) ch[i][j] = s[i][j];
				//print(ch);
				
				for(int i=0;i<n;++i) {
					if(((r>>i)&1) == 1) {
						for(int j=0;j<m;++j) ch[i][j] = 'x';
					}
				}
				for(int i=0;i<m;++i) {
					if(((c>>i)&1) == 1) {
						for(int j=0;j<n;++j) ch[j][i] = 'x';
					}
				}
				int ans = 0;
				for(int i=0;i<n;++i) {
					for(int j=0;j<m;++j) {
						if(ch[i][j] == '#') ++ans;
						
					}
					//out.println(new String(ch[i]));
				}
				//out.println(ans);
				if(ans == k) ++cnt;
			}
			
		}
		out.println(cnt);
		out.close();
	}

	private static void print(char[][] ch) {
		for(char[] s : ch) out.println(Arrays.toString(s));
		
	}
	
	
}
	

Measured memory_bytes: 39484