import java.io.*;
import java.util.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int m = sc.nextInt();
        int[] judges = new int[n];
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                judges[i] |= (sc.nextInt() << j);
            }
        }
        int[] dp = new int[1 << m];
        dp[0] = 1;
        for (int i = 1; i < (1 << m); i++) {
            int reverse = (1 << m) - 1 - i;
            for (int j = 0; j < m; j++) {
                if ((i & (1 << j)) == 0) {
                    continue;
                }
                int agree = 0;
                int against = 0;
                for (int k = 0; k < n; k++) {
                    if ((judges[k] & reverse) != reverse) {
                        continue;
                    }
                    if ((judges[k] & (1 << j)) == 0 ) {
                        against++;
                    } else {
                        agree++;
                    }
                }
                if (agree >= against) {
                    dp[i] += dp[i ^ (1 <<j)];
                }
            } 
        }
        System.out.println(dp[(1 << m) - 1]);
    }
}

class Utilities {
    static String arrayToLineString(Object[] arr) {
        return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));
    }
    
    static String arrayToLineString(int[] arr) {
        return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public int[] nextIntArray() throws Exception {
        return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}