// #pragma GCC target("avx2,avx512f,avx512vl,avx512bw,avx512dq,avx512cd,avx512vbmi,avx512vbmi2,avx512vpopcntdq,avx512bitalg,bmi,bmi2,lzcnt,popcnt")
// #pragma GCC optimize("Ofast")

#include<bits/stdc++.h>
using namespace std;

char arr[105][105];
bool vis[105][105];

int n, m;
bool check(int x, int y) {
    return (x > 0 && x <= n && y > 0 && y <= m);
}

void dfs(int x, int y) {
    if (vis[x][y])return;
    vis[x][y] = true;

    for (int i = -1; i < 2; i++) {
        for (int j = -1; j < 2; j++) {
            if (j == 0 && i == 0)continue;

            int xx = x + i;
            int yy = y + j;

            if (check(xx, yy) && !vis[xx][yy]&&arr[xx][yy]=='#') {
                dfs(xx, yy);
            }
        }
    }
}

signed main() {
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);

    cin >> n >> m;

    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {cin >> arr[i][j];}
    }

    int ans = 0;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            if (arr[i][j] == '#' && !vis[i][j]) {
                ans++;
                dfs(i, j);
            }
        }
    }

    cout << ans << "\n";

}