#include<bits/stdc++.h>
using namespace std;
long long x,y;
char a[1000];
bool cmp(long long n,long long m){
	if(a[n][m-1]=='0'||a[n-1][m]=='0'||a[n+1][m]=='0'||a[n][m+1]=='0'){
		return 0;
	}else{
		return 1;
	}
}
int main(){
	cin>>x>>y;
	for(long long i=1;i<=x;i++){
		for(long long j=1;i<=y;j++){
			cin>>a[i][j];
		}
	}
	long long sum=0;
	for(long long i=1;i<=x;i++){
		for(long long j=1;i<=y;j++){
			if(a[i][j]=='0'){
				if(cmp(i,j)){
					sum++;
				}
			}
		}
	}
	return 0;
}
/**************************************************************
	Problem: 1913
	User: lixinglei
	Language: C
	Result: Compile Error
****************************************************************/