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