#include<bits/stdc++.h>
using namespace std;
char c[110][110];
int n,m,yu; 
int dx[12]={1,0,1,-1,1,-1,0,-1,2,0,-2,0};
int dy[12]={0,1,1,-1,-1,0,-1,0,0,2,0,-2};
void dfs(int x,int y){
	c[x][y]='-';
	for(int i=0;i<=11;i++){
		int tx=x+dx[i];
		int ty=y+dy[i];
		if(c[tx][ty]=='#'&&tx>=1&&tx<=n&&ty>=1&&ty<=m){
			
			dfs(tx,ty);
			
		}
	}
}
int main(){
	cin>>n>>m;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			cin>>c[i][j];
		}
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			if(c[i][j]=='#'){
				a[i][j]='-';
				dfs(i,j);
				yu++;
			} 
		}
	}
	cout<<yu;
	return 0;
}
/**************************************************************
	Problem: 1966
	User: huangsheng
	Language: C++
	Result: Compile Error
****************************************************************/