#include<iostream>
#include<stdio.h>
#include<stdlib.h>
#include<string>
using namespace std;
int x,y;
char map[110][110];
int all=0;
int flag = 0;

int judge(int a,int b){
	if(map[a][b]=='*'){return 0;}
	else if(map[a][b]=='.'){
		map[a][b]='*';
		int now = judge(a,b-1)+judge(a,b+1)+judge(a-1,b)+judge(a+1,b);
		if( a-1==0 || a+1==x+1 || b-1==0 || b+1 ==y+1){
			return 1;
		}
		return now;
	}
}

int main(){
	scanf("%d%d",&x,&y);
	getchar();
	for(int i=0;i<=y+1;++i){map[0][i]='.';map[x+1][i]='.';}
	for(int i=0;i<=x+1;++i){map[i][0]='.';map[i][y+1]='.';}
	for(int i=1;i<=x;++i){
		for(int j=1;j<=y;++j){
			scanf("%c",&map[i][j]);
		}
		getchar();
	}
	for(int i=1;i<=x;++i){
		for(int j=1;j<=y;++j){
			if(map[i][j]=='.'){
				flag=judge(i,j);

				if(flag ==0 ){
					all++;
				}
			}
		}
	}
	cout<<all<<endl;
}