#include <bits/stdc++.h>

using namespace std;

#define FOR(i, a, b) for(int i = (a); i < (b); i++)
#define RFOR(i, a, b) for(int i = (a) - 1; i >= (b); i--)
#define SZ(a) int(a.size())
#define ALL(a) a.begin(), a.end()
#define PB push_back
#define MP make_pair
#define F first
#define S second

typedef long long LL;
typedef vector<int> VI;
typedef pair<int, int> PII;
typedef double db;

int main()
{
	ios::sync_with_stdio(0); 
	cin.tie(0);
	cout << fixed << setprecision(15);
	
	int n, m;
	cin >> n >> m;
	VI cnt(3);
	VI a(n * m);
	FOR (i, 0, n * m)
	{
		cin >> a[i];
		cnt[a[i]]++;
	}
	if (cnt[0] > 1)
	{
		cout << 0 << '\n';
	}
	else if (cnt[0])
	{
		int ans = 2;
		if (cnt[1] > 0)
		{
			if (a[0] == 1 || a[n * m - 1] == 1 || min(n, m) > 1)
				ans = 1;
		}
		cout << ans << '\n';
	}
	else if(cnt[2] % 2 == 0)
	{
		cout << 0 << '\n';
	}
	else
	{
		unsigned long long x = 1;
		cout << (x << (cnt[2] / 2)) << '\n';
	}
	
	return 0;
}