//***** author: attacker *****//
//***** created: 18.04.2026 21:15:28 *****//
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "algo/debug.h"
#else
#define debug(...) 1
#endif
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define bpc __builtin_popcount
#define size(v) (int) (v.size())
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int n, m;
cin >> n >> m;
vector<string> a(n);
for (int i = 0; i < n; i++) {
cin >> a[i];
}
int res = 0;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if ((i == 0 || a[i - 1][j] == '.') && (j == 0 || a[i][j - 1] == '.') && a[i][j] == '*') {
res++;
}
}
}
cout << res << '\n';
return 0;
}