#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
#define fast ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define fi first
#define se second
#define pb push_back
#define endl "\n"
#define int long long
using namespace std;
typedef tuple<int, int, int> iii;
typedef long long ll;
const int mod =998244353;
int n, m, ans;
char c[105][105];
bool vis[105][105];
void dfs(int i, int j){
if(i<1 || i>n || j<1 || j>m || c[i][j]=='.' || vis[i][j])return;
vis[i][j]=true;
dfs(i-1, j);
dfs(i+1, j);
dfs(i, j+1);
dfs(i, j-1);
}
int32_t main(){
fast;
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(vis[i][j])continue;
if(c[i][j]=='.')continue;
ans++;
dfs(i, j);
}
}
cout<<ans<<endl;
}
