#include<bits/stdc++.h>
using namespace std;
int main(){
	long long x,y,a[505][505],s=0;
	cin>>x>>y;
	for(int i=1;i<=y;i++){
		for(int j=1;j<=x;j++){
			cin>>a[i][j];
		}	
	}
	for(int i=1;i<=y;i++){
		for(int j=1;j<=x;j++){
			if(a[i][j]==0){
				if(a[i+1][j]=='*'&&a[i-1][j]=='*'){
					if(a[i][j+1]=='*'&&a[i][j-1]=='*'){
						s++;
					}
				}
			}
		}	
	}
	cout<<s;
	return 0;
} 
/**************************************************************
	Problem: 1913
	User: hongjiaxu
	Language: C
	Result: Compile Error
****************************************************************/