#include<bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using mint=modint998244353; //1000000007;
using ll=long long;
using pp=pair<int,int>;
#define sr string 
#define vc vector
#define fi first
#define se second
#define rep(i,n) for(int i=0;i<(int)n;i++)
#define pb push_back
#define all(v) v.begin(),v.end()
#define pque priority_queue
#define bpc(a) __builtin_popcount(a)
int main(){
  int n,m;cin>>n>>m;
  int b=1<<m;
  vc<int>v(b,0);
  rep(i,n){
    int a=0;
    rep(j,m){
      int x;cin>>x; a|=x<<j;
    }
    v[a]++;
  }
  vc<ll>dp(b,0); dp[0]=1;
  rep(i,b)rep(j,m)if(~i>>j&1){
    int w=0;
    rep(k,b)if((k&i)==i){
      if(k>>j&1)w+=v[k];
      else w-=v[k];
    }
    if(w<0)continue;
    dp[i|1<<j]+=dp[i];
  }
  cout<<dp[b-1];
}